RSC - Anal. Methods latest articles

Direct quantification of 11-nor-[capital Delta]9-tetrahydrocannabinol-9-carboxylic acid and its glucuronide in urine using liquid chromatography-tandem mass spectrometry

Anal. Methods, 2013, Advance Article
DOI: 10.1039/C3AY26615J, Paper

Woonyong Kwon, Jin Young Kim, SungIll Suh, Moon Kyo In
A liquid chromatography-tandem mass spectrometric method for the direct detection and quantification of 11-nor-[capital Delta]⁹-tetrahydrocannabinol-9-carboxylic and its glucuronide in urine was developed and validated. The method was reliable, simple and successfully proven for the routine analysis of real urine samples.
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Self-assembly synthesis of a hierarchical structure using hollow nitrogen-doped carbon spheres as spacers to separate the reduced graphene oxide for simultaneous electrochemical determination of ascorbic acid, dopamine and uric acid

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40572A, Paper

Hejing Zhang, Pengbo Gai, Rui Cheng, Liang Wu, Xiaohua Zhang, Jinhua Chen
This is an Accepted Manuscript, which has been through the RSC Publishing peer review process and has been accepted for publication. Accepted manuscripts are published online shortly after acceptance. This version of the article will be replaced by the fully edited, formatted and proof read Advance Article as soon as this is available.
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Determination of triazine residues in herbal plants using molecularly imprinted polymer extraction followed by UPLC-MS/MS

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40407B, Paper

Beiping Mao, Zhengwei Jia, Xiuhong Mao, Ke Wang, Shen Ji
The present study described the development and validation of a sensitive and selective analytical method for simultaneous determination of 23 triazines in herbal plants. Pesticides were extracted using a modified...
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A sensitive, rapid chemiluminescence ELISA for the detection of 1, 4 -bisdesoxycyadox residue in chicken muscle and liver

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40101D, Paper

Jianying Fu, Yanying Wang, Juan Cao, Yu Ziniu, Jibin Zhang
A rapid system for 1,4-bisdesoxycyadox (Cy4) detection in chicken breast muscle and liver using highly sensitive luminol hydrogen peroxide-based chemiluminescence enzyme immunoassay (CL-ELISA) was developed. Cy4-specific monoclonal antibodies (Mab) were...
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Quality assurance in immunoassay performance - Carbamazepine immunoassay format evaluation and application on surface and waste waters

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40702K, Technical Note

Julia Grandke, Lidia Oberleitner, Ute Resch-Genger, Leif-Alexander Garbe, Rudolf J. Schneider
Carbamazepine (CBZ) is one of the most frequently detected pharmaceuticals in water samples. For the determination of this anthropogenic marker, various immunoassay formats were tested and evaluated in order to...
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Feasibility of energy dispersive X-ray fluorescence determination of gold in soft tissue for clinical applications

Anal. Methods, 2013, Advance Article
DOI: 10.1039/C3AY40126J, Technical Note

Isidro B. Magana, Pratik Adhikari, Megan C. Smalley, Sven E. Eklund, D. Patrick O'Neal
The feasibility of using EDXRF for a rapid quantitative analysis of gold in tumor tissue has been investigated.
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A portable, pressure driven, room temperature nucleic acid extraction and storage system for point of care molecular diagnostics

Anal. Methods, 2013, Advance Article
DOI: 10.1039/C3AY40162F, Paper

Samantha Byrnes, Andy Fan, Jacob Trueb, Francis Jareczek, Mark Mazzochette, Andre Sharon, Alexis F. Sauer-Budge, Catherine M. Klapperich
Many new and exciting portable HIV viral load testing technologies are emerging for use in global medicine.
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Hydrolysis of lysozyme with an RF-powered micro-reactor

Anal. Methods, 2013, 5,2860-2865
DOI: 10.1039/C3AY26273A, Paper

Valerie J. Scott, Peter H. Siegel, Xenia Amashukeli
An RF sample-processing micro-reactor that was developed as part of potential in situ exploration missions to inner- and outer-planetary bodies has been used to perform hydrolysis of a protein-lysozyme.
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Direct determination of transition metals in mussel tissue digests using high-performance chelation ion chromatography with monolithic silica based chelating ion exchangers

Anal. Methods, 2013, 5,2666-2673
DOI: 10.1039/C3AY40301G, Paper

Nicola McGillicuddy, Ekaterina P. Nesterenko, Phil Jones, Dario Caldarola, Barbara Onida, Ashley T. Townsend, Dimitar P. Mitev, Pavel N. Nesterenko, Brett Paull
High-performance chelation ion chromatography method was developed for direct analysis of shellfish acid digest for heavy metal contamination.
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Separation and identification of phosphorothioate oligonucleotides by HILIC-ESIMS

Anal. Methods, 2013, 5,2657-2659
DOI: 10.1039/C3AY26519F, Communication

Renee Easter, Colin Barry, Joseph Caruso, Patrick Limbach
A combined hydrophilic interaction chromatography (HILIC) electrospray ionization mass spectrometry (ESI-MS) approach for the separation and identification of phosphorothioate oligonucleotides is described.
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Protein-polyphenol interaction on silica beads for astringency tests based on eye, photography or reflectance detection modes

Anal. Methods, 2013, 5,2694-2703
DOI: 10.1039/C3AY26478E, Paper

J. Rafaela L. Guerreiro, Duncan S. Sutherland, Victor De Freitas, M. Goreti F. Sales
Astringency is an organoleptic property of beverages and food products resulting mainly from the interaction of salivary proteins with dietary polyphenols.
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A novel metal-dye system for urinary phytate detection at micro-molar levels in rats

Anal. Methods, 2013, Advance Article
DOI: 10.1039/C3AY26563C, Paper

A. Costa-Bauza, F. Grases, S. Fakier, A. Rodriguez
This method consists of purification/preconcentration of phytate via solid-phase extraction prior to colorimetric detection with Al-xylenol orange. It avoids the complications and errors of other methods.
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Quantitation of dopamine, serotonin and adenosine content in a tissue punch from a brain slice using capillary electrophoresis with fast-scan cyclic voltammetry detection

Anal. Methods, 2013, 5,2704-2711
DOI: 10.1039/C3AY40222C, Paper

Huaifang Fang, Megan L. Pajski, Ashley E. Ross, B. Jill Venton
Methods to determine neurochemical concentrations in small samples of tissue are needed to map interactions among neurotransmitters.
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Mercuric-triggered hydrogen peroxide "turn-on" fluorescence detection in neuronal cells with novel fluorescein-based probe obtained in one pot

Anal. Methods, 2013, 5,2650-2652
DOI: 10.1039/C3AY40296G, Communication

Dhiraj P. Murale, Hyunjeong Liew, Yoo-Hun Suh, David G. Churchill
The simple dimethyl-thiocarbamoyl protecting group allows for high aqueous fluorescein-based H₂O₂ "turn-on" responses in the presence of Hg²⁺ concentration.
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Sensitive determination of illegal drugs of clenbuterol and salbutamol in swine urine by capillary electrophoresis with on-line stacking based on the moving reaction boundary

Anal. Methods, 2013, 5,2848-2853
DOI: 10.1039/C3AY40100F, Paper

Liu-Yin Fan, Qian Chen, Wei Zhang, Cheng-Xi Cao
A stacking method based on MRB is developed for the sensitive detection of SAL and CLB in swine urine at trace levels.
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Determination of polyamines in Arabidopsis thaliana by capillary electrophoresis using salicylaldehyde-5-sulfonate as a derivatizing reagent

Anal. Methods, 2013, 5,2854-2859
DOI: 10.1039/C3AY26360F, Paper

Genki Inoue, Takashi Kaneta, Toshio Takayanagi, Junichi Kakehi, Hiroyasu Motose, Taku Takahashi
Herein, we report a novel method for the determination of polyamines in a sample extracted from Arabidopsis thaliana by capillary electrophoresis (CE) using salicylaldehyde-5-sulfonate (SAS) as a derivatizing reagent.
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A novel high throughput nucleic acid sandwich hybridization assay on a gold substrate

Anal. Methods, 2013, 5,2835-2839
DOI: 10.1039/C3AY40196K, Paper

C. H. van den Kieboom, T. S. Y. van Domburg, M. I. de Jonge, G. Ferwerda, P. W. M. Hermans
A highly specific and sensitive universal high throughput nucleic acid-based detection assay on a gold substrate for the development and improvement of capacitive nucleic acid biosensor assays is presented.
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The evaluation of forest fire severity and effect on soil organic matter based on the L, a, b* color reading system

Anal. Methods, 2013, 5,2660-2665
DOI: 10.1039/C3AY26251K, Paper

Kazuto Sazawa, Takatoshi Wakimoto, Noriko Hata, Shigeru Taguchi, Shunitz Tanaka, Masamoto Tafu, Hideki Kuramitz
The [capital Delta]a* and [capital Delta]b* values for peat soils decreased when samples were heated over the temperature range from 200 to 250 [degree]C and showed a good linear correlation with the atomic ratios of H/C and O/C.
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Quantum dot immobilized acetylcholinesterase for the determination of organophosphate pesticides using graphene-chitosan nanocomposite modified electrode

Anal. Methods, 2013, 5,2866-2872
DOI: 10.1039/C3AY26599D, Paper

Jing Dong, Han Zhao, Fengmin Qiao, Pei Liu, Xindong Wang, Shiyun Ai
Introducing graphene-chitosan nanocomposites to an electrode that has AChE immobilised via binding with functionalised ZnSe quantum dots produced a highly sensitive biosensor for organophosphate pesticides determination."
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Simple and sensitive turn-on luminescent detection of biothiols based on energy transfer between green-emitting upconversion nanocrystals and gold nanoparticles

Anal. Methods, 2013, 5,2873-2879
DOI: 10.1039/C3AY40105G, Paper

Hong-Qi Chen, Fei Yuan, Lun Wang
A fluorescence resonance energy transfer system was developed for the determination of biothiols using NaYF₄:Yb³⁺,Er³⁺ upconversion nanoparticles and gold nanoparticles.
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Direct analysis of urinary 1-hydroxypyrene using extractive electrospray ionization ion trap tandem mass spectrometry

Anal. Methods, 2013, 5,2816-2821
DOI: 10.1039/C3AY40241J, Paper

Xue Li, Xiaowei Fang, Zhiqiang Yu, Guoying Sheng, Minghong Wu, Jiamo Fu, Huanwen Chen
By using extractive electrospray ionization ion trap tandem mass spectrometry, fast quantification (0.5 min) of urinary 1-hydroxypyrene has been demonstrated.
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Mercury emissions in equilibrium: a novel approach for the quantification of mercury emissions from contaminated soils

Anal. Methods, 2013, 5,2793-2801
DOI: 10.1039/C3AY25700B, Paper

Manuel Carmona, Williams Llanos, Pablo Higueras, David Kocman
Mercury emissions from contaminated soils under different temperature and light conditions have been modeled using Langmuir and Freundlich equations.
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An investigation into the performance of a multi-sorbent sampling tube for the measurement of VVOC and VOC emissions from products used indoors

Anal. Methods, 2013, 5,2746-2756
DOI: 10.1039/C3AY40224J, Paper

Veronica M. Brown, Derrick R. Crump
A multi-sorbent air sampling tube gave improved performance for measurement of VVOCs emitted from materials, without compromising performance for VOCs.
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Methoxy poly(ethylene glycol)-block-polycaprolactone copolymer: formulation and optimization by experimental design; determination of diblock molar mass by multivariate regression analysis of 1H NMR spectra

Anal. Methods, 2013, 5,2840-2847
DOI: 10.1039/C3AY26561G, Paper

Mohammad Reza Khanmohammadi, Mohammad Hossein Ahmadi Azqhandi, Bahman Vasheghani Farahani, Reza Najafipour
Optimization of apparent molar massin amphiphilic block copolymers of MePEG and PCL.
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A coumarin-based chromogenic and ratiometric probe for hydrazine

Anal. Methods, 2013, 5,2653-2656
DOI: 10.1039/C3AY40148K, Communication

Kun Li, Hao-Ran Xu, Kang-Kang Yu, Ji-Ting Hou, Xiao-Qi Yu
A coumarin-based chromogenic and ratiometric probe for hydrazine was presented, which could selectively detect hydrazine over other primary amines.
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Identification of bacteria in drinking water with Raman spectroscopy

Anal. Methods, 2013, 5,2679-2687
DOI: 10.1039/C3AY40289D, Paper

Jack van de Vossenberg, Heli Tervahauta, Kees Maquelin, Carola H. W. Blokker-Koopmans, Marijan Uytewaal-Aarts, Dick van der Kooij, Annemarie P. van Wezel, Bram van der Gaag
There is no direct method for the identification of pathogenic and indicator bacteria in drinking water. The described Raman spectroscopy method can identify such organisms without the need of additional biochemicals.
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A strategy of EIC-MS coupled with diagnostic product ions analysis for efficient discovery of new hydroxylated polymethoxyflavonoid glycosides from the leaves of Murraya paniculata L. using HPLC-DAD-MS/MS

Anal. Methods, 2013, 5,2880-2891
DOI: 10.1039/C3AY26475K, Paper

Jia-Yu Zhang, Jian-Qiu Lu, Fang Wang, Guang-shang Cao, Peng-Fei Tu, Yan-Jiang Qiao
EIC-MS coupled to DPIs analysis for efficient discovery of 54 OH-PMFGs in the leaves of Murraya paniculata L. by HPLC-DAD-MS/MS.
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Conformational dynamics of DNA bulge loops investigated by CE-LIF

Anal. Methods, 2013, 5,2773-2777
DOI: 10.1039/C3AY26103D, Paper

Ming-Feng Huang, Huan-Tsung Chang
Capillary electrophoresis with laser induced fluorescence (CE-LIF) detection has been utilized to investigate the metastable states of DNA bulge loops during strand displacement reactions.
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Independent component analysis algorithms for spectral decomposition in UV/VIS analysis of metal-containing mixtures including multimineral food supplements and platinum concentrates

Anal. Methods, 2013, 5,2761-2772
DOI: 10.1039/C3AY40082D, Paper

Yulia B. Monakhova, Svetlana S. Kolesnikova, Svetlana P. Mushtakova
Various independent component analysis (ICA) algorithms (MILCA, JADE, SIMPLISMA, RADICAL) are applied for simultaneous spectroscopic determination of transition metals in complex mixtures.
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Optimisation and application of dispersive liquid-liquid microextraction for simultaneous determination of carbamates and organophosphorus pesticides in waters

Anal. Methods, 2013, 5,2736-2745
DOI: 10.1039/C3AY26032A, Paper

Raquel Sousa, Vera Homem, Jose Luis Moreira, Luis M. Madeira, Arminda Alves
DLLME parameters for the simultaneous determination of carbamate and organophosphorus pesticides were optimised using a DoE approach. A simple yet sensitive method was achieved.
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Molecularly imprinted stir bar sorptive extraction coupled with atomic absorption spectrometry for trace analysis of copper in drinking water samples

Anal. Methods, 2013, 5,2778-2783
DOI: 10.1039/C3AY40355F, Paper

Hossein Hashemi, Mostafa Khajeh, Massoud Kaykhaii
A novel MIP coated stir bar was fabricated and used for the extraction of trace amounts of Cu from drinking water.
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Determination of saccharides in aerosols by hydrophilic interaction liquid chromatography-evaporative light scattering detection after preconcentration/clean-up on magnetic titania

Anal. Methods, 2013, 5,2802-2808
DOI: 10.1039/C3AY26613C, Paper

Efthymia C. Paparizou, Andreas E. Karatapanis, Constantine D. Stalikas
We report a simple liquid chromatographic method for some common saccharides in aerosol samples on a diol-silica column, in connection with evaporative light scattering detection, after preconcentration on magnetic titania.
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Metabolomic study on the hepatoprotective effects of modified Sinisan using ultra-performance liquid chromatography/electrospray ionization quadruple time-of-flight mass spectrometry coupled with pattern recognition approach

Anal. Methods, 2013, 5,2727-2735
DOI: 10.1039/C3AY40143J, Paper

Xiao-Wei Du, Xiao-Li Wang, De-You Jiang, Nai-Zhi Geng, Shuo-Xin Zhang, Yuan-Yuan Zhou, Cheng-Gang Liu
A novel metabolomic platform using UPLC-MS coupled with pattern recognition approach for a molecular mechanism study of traditional medicine.
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Ultrafiltration to remove trypsin for suppressing the back-exchange of 18O labeling

Anal. Methods, 2013, 5,2892-2897
DOI: 10.1039/C3AY26616H, Technical Note

Yan Xiong, Yujuan Li, Kefu Liu, Ming Ke, Umer Awan, Yulin Deng
A method for the removal of soluble trypsin by ultrafiltration inhibits ¹⁸O back-exchange and applied to off-gel separation is described.
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Development of a HPLC-ECD method for the simultaneous determination of three synthetic estrogens in milk

Anal. Methods, 2013, 5,2822-2826
DOI: 10.1039/C3AY26578A, Paper

Xiaojing Du, Yan Wu, Han Zhou, Ni Cheng, Mengxue Feng, Jianbin Zheng, Wei Cao
Simultaneous separation and determination of the three synthetic estrogens, diethylstilbestrol, dienestrol, and hexestrol in milk by high performance liquid chromatography with electrochemical detection.
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Dissolution determination of five components in Huoxiang Zhengqi tablets using partitioned dispersive liquid-liquid microextraction combined with HPLC-UV

Anal. Methods, 2013, 5,2674-2678
DOI: 10.1039/C3AY40153G, Paper

Huaizhong Guo, Xiaomin Pang, Weiquan Zhang, Wenyue Jiang, Xiaocong Pang
The dissolution determination of multiple components in herbal preparations is a crucial method for controlling the quality of oral solid dosage forms.
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Magnetic solid-phase extraction of neonicotinoid pesticides from pear and tomato samples using graphene grafted silica-coated Fe3O4 as the magnetic adsorbent

Anal. Methods, 2013, 5,2809-2815
DOI: 10.1039/C3AY40207J, Paper

Xiaoxing Ma, Juntao Wang, Meng Sun, Weina Wang, Qiuhua Wu, Chun Wang, Zhi Wang
Graphene grafted silica-coated Fe₃O₄ as an effective adsorbent for the enrichment of neonicotinoid pesticides in pear and tomato samples.
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A competitive immunoassay based on gold nanoparticles for the detection of chromium in water samples

Anal. Methods, 2013, 5,2720-2726
DOI: 10.1039/C3AY00012E, Paper

Junhui Zou, Yong Tang, Yifan Zhai, Hui Zhong, Jianxun Song
A one-step competitive ELISA based on AuNPs for the detection of chromium was developed.
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A new method for identification of in vitro metabolites of 2,3,7,8-TCDD with rat liver microsomes by using liquid chromatography-mass spectrometry

Anal. Methods, 2013, 5,2757-2760
DOI: 10.1039/C3AY26443B, Paper

Chunyan Wang, Zhi Tang, Yanling Zhang, Yan Liang, Fengrui Song, Zongwei Cai
LC-MS/MS provides an alternative approach for the direct analysis of TCDD metabolites.
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A resonance Rayleigh scattering detection of DNA hybridization based on interaction between DNA and surfactants

Anal. Methods, 2013, 5,2688-2693
DOI: 10.1039/C3AY40291F, Paper

Ying Ma, Changqun Cai, Lin Luo, Jiaqi Xie, Xiaoming Chen
Six kinds of surfactants were selected to probe DNA hybridization detection based on a resonance Rayleigh scattering method.
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Simultaneous LC-MS/MS quantification and pharmacokinetics of baicalin, chlorogenic acid and forsythin after intravenous administration of Shuang-huang-lian powder to dogs

Anal. Methods, 2013, 5,2784-2792
DOI: 10.1039/C3AY40147B, Paper

Zhaoxia Li, Feng Qiu, Xingbin Yin, Haiyan Zou, Muxin Gong, Yongsong Zhai, Jian Ni
An LC-MS/MS method has been developed and validated for the simultaneous determination of baicalin, chlorogenic acid and forsythin in dog plasma.
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High specific phosphopeptides enrichment by titanium silicalite with post-treatment of desilication

Anal. Methods, 2013, Advance Article
DOI: 10.1039/C3AY00064H, Communication

Bo Xu, Chen Chen, Fangjun Wang, Yangyang Bian, Kai Cheng, Hongqiang Qin, Chunxia Song, Jun Zhu, Jing Liu, Mingliang Ye, Hanfa Zou
A T-TS-1 material-based successive phosphopeptide enrichment strategy was established for complex biological sample analysis.
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The detailed electrochemical character of brucine at a poly(aspartic acid)-modified electrode and its sensitive determination

Anal. Methods, 2013, 5,2712-2719
DOI: 10.1039/C3AY26618D, Paper

Jie Liu, Lingxi Yang, Kai Zhang, Kunjing Li, Xianli Wu, Baoxian Ye
A simple and reliable electrochemical sensor, based on poly(DL-aspartic acid), was proposed for brucine. The sensor improved the response of brucine intensively.
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Migration of 16 phthalic acid esters from plastic drug packaging to drugs by GC-MS

Anal. Methods, 2013, 5,2827-2834
DOI: 10.1039/C3AY40234G, Paper

Lang Ji, Qing Liao, Lian Wu, Wei Lv, Ming Yang, Li Wan
GC-MS method for the simultaneous determination of 16 PAEs.
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Nanodiamonds assisted-cloud point extraction for the determination of fluoranthene in river water

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40541A, Paper

Encarnacion Caballero-Diaz, Bartolome M. Simonet, Miguel Valcarcel
The classic cloud point extraction has been modified by the inclusion of nanodiamonds and applied in last term to the extraction/preconcentration of fluoranthene from river water. The effect of ionic...
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Label-free selective detection of coralyne due to aptamer-coralyne interaction using DNA modified SiO2@Au core/shell nanoparticles as an effective SERS substrate

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40099A, Paper

Yilin Lu, Qing Huang
A label-free approach to detection of coralyne using aptamer modified silica-Au/core-shell nanoparticles (denoted as SiO2@Au core/shell) through surface enhanced Raman scattering (SERS) spectroscopy was proposed. The silica-Au/core-shell colloids were synthesized...
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BSA-protected gold nanoclusters as fluorescent sensor for selective and sensitive detection of pyrophosphate

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY00054K, Paper

Jia-ming Liu, Ma-lin Cui, Shu-Lian Jiang, Xin-xing Wang, Li-ping Lin, Li Jiao, Li-Hong Zhang, Zhi-Yong Zheng
Gold nanoclusters (AuNCs) protected by bovine serum albumin (BSA) can emit red photoluminescence under illumination of ultraviolet light. The luminescence of the BSA-AuNCs quenched when Cu2+ chelated with glycine in...
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Sensitive voltammetric sensor of bergenin based on poly(L-lysine)/graphene modified glassy carbon electrode

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40531A, Paper

Yinfeng Li, Jie Liu, Ge Song, Kunjing Li, Kai Zhang, Baoxian Ye
A sensitive and novel electrochemical sensor for detection of bergenin by linear sweep voltammetry (LSV) was presented. This sensor was fabricated by dripping well-dispersed graphene onto glassy carbon electrode (GCE)...
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Development of narrow-band TLC plates for TLC/FTIR analysis

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40128F, Paper

Fang Wang, Haijun Wu, Qing Zhu, Kun Huang, Yongju Wei, Cuige Liu, Yanjun Zhai, Zhanlan Yang, Shifu Weng, Yizhuang Xu, Isao Noda, Jinguang Wu
The present paper focuses on the development of narrow-band thin-layer chromatography (TLC) coupled with Fourier transform Infrared spectroscopy (FTIR) technique. We adopted a new method to prepare a narrow-band TLC...
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Electrocatalytic Oxidation of Formaldehyde on Direct Electrodeposited Grahene-Platinum Nanoparticles Composites Electrode

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40364E, Paper

Yanan Chen, Xiaohui Liu, Wen Zhang, Yao Zhang, Lijun Li, Zhenzhu Cao, Hong Wang, Gan Jia, Yanfang Gao, Jinrong Liu
The one-step electrochemical deposition of highly dispersed platinum nanoparticles on graphene to fabricate a new Pt/EG/GC modified electrode for formaldehyde determination in aqueous solution. Catalyst surface morphology was characterized by...
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An Efficient Fluorescence Turn-On probe for Al3+ Based on Aggregation-Induced Emission

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40354H, Paper

Tiantian Wei, Jing Zhang, Guojiang Mao, xiaobing Zhang, Zhaojin Ran, Weihong Tan, Ruqin Yu
Aggregation-induced emission (AIE) dyes show different emission mechanism from traditional dyes, which were found nonluminescent in the solution state but emissive in the aggregate state, and have been well employed...
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Magnetic nanoparticle assisted dispersive liquid-liquid microextraction for the determination of 4-n-nonylphenol in water

Anal. Methods, 2013, Advance Article
DOI: 10.1039/C3AY00001J, Communication

Kheng Soo Tay, Noorsaadah Abd. Rahman, Mhd Radzi Bin Abas
A magnetic nanoparticle assisted dispersive liquid-liquid microextraction for the determination of 4-nonylphenol in drinking water and secondary wastewater.
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A solid phase extraction procedure based on electrospun cellulose-g-oxolane-2,5-dione nanofibers for trace determination of Cd, Cu, Fe, Pb and Zn in gasoline samples by ICP-OES

Anal. Methods, 2013, Advance Article
DOI: 10.1039/C3AY26543A, Paper

Philiswa N. Nomngongo, J. Catherine Ngila, Stephen M. Musyoka, Titus A. M. Msagati, Brenda Moodley
The use of electrospun cellulose-g-oxolane-2,5-dione nanofibers for simultaneous preconcentration of trace metals in gasoline samples, followed by ICP-OES.
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What causes most errors in chemical analysis?

Anal. Methods, 2013, Advance Article
DOI: 10.1039/C3AY90035E, AMC Technical Brief

Analytical Methods Committee, AMCTB No 56
Errors in chemical analysis are often discussed but seldom reliably attributed to specific causes. Feedback from participants in proficiency tests is an ideal source of information, however, and a recent study has shown that simple human error is by far the main culprit.
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Strategies to avoid electrode fouling for nimesulide detection using unmodified electrodes

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40463C, Paper

Iranaldo Santos da Silva, Bruno Capovilla, Kellen Heloizy Garcia Freitas, Lucio Angnes
Voltammetric quantification of nimesulide presents a serious drawback due to surface fouling on unmodified electrodes. In the anodic region, the electrode fouling effects are critical and alternative procedures are required...
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Development of a near-infrared fluorescent probe for monitoring hydrazine in serum and living cells

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40540K, Communication

Sasa Zhu, Weiying Lin, Lin Yuan
Hydrazine is widely used in industries, agriculture, pharmacy, military, and aerospace. However, the exposure of high-level hydrazine may cause irritation of eyes, nose, and throat, temporary blindness, dizziness, nausea, pulmonary...
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Simple and direct potentiometric determination of potassium ions in biodiesel microemulsions at a glassy carbon electrode modified with nickel (II) hexacyanoferrate nanoparticles.

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40774H, Paper

Graziela Cristina Sedenho, Leonardo Lataro Paim, N R Stradiotto
Considering the great importance of the determination of inorganic ions present in fuels, particularly in relation to potassium, the scope of this work was to develop a potentiometric method using...
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Elimination of interferences caused by simultaneous use of deuterated and carbon-13 standards in GC-MS analysis of polycyclic aromatic hydrocarbons (PAHs) in extracts from passive sampling devices

Anal. Methods, 2013, Advance Article
DOI: 10.1039/C3AY40419F, Communication

Matyas Ripszam, Roman Grabic, Peter Haglund
Two types of isotope-labelled reference compounds are typically used for the passive sampling of polycyclic aromatic hydrocarbons.
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A Polymeric Membrane Electrode for the Detection of Perchlorate in Water at the Sub-micro-molar Level

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40522B, Paper

Po-yen Wang, S. Ismat Shah, Chin-Pao Huang
A highly sensitive polymeric membrane electrode was synthesized for the detection of perchlorate in water. The membranes were characterized for thickness, potentiometric responses, and response time. Factors such as interfering...
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Magnetic solid-phase extraction to preconcentrate trace amount of lead(II) using modified sol-gel by carbon nanotubes decorated with NiFe2O4 magnetic nanoparticles

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40246K, Paper

Ali A. Ensafi, S. Rabiei, B. Rezaei, Ali R. Allafchian
In this paper multiwall carbon nanotubes decorated with NiFe2O4 nanoparticles were synthesized by a simple reaction and applied as a solid-phase extraction (SPE) sorbents to extract trace amounts of lead(II)...
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Molecularly imprinted polymer for microdisc solid-phase extraction of parabens in human milk samples

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY00025G, Paper

Lidervan Paula Melo, Maria Eugenia Costa Queiroz
A new molecularly imprinted sol-gel polymer (MIP) was developed for microdisc solid phase extraction of methyl, ethyl and propyl parabens from human milk samples, followed by liquid chromatography analysis with...
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Evaluation of a New Passive Sampler Using Hydrophobic Zeolites as Adsorbents for Exposure Measurement of Indoor BTX

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40600H, Paper

Zhengjian Du, Jinhan Mo, Yinping Zhang, Xinxiao Li, Qiujian Xu
Rapid urbanization in China has resulted in more serious pollution of indoor benzene, toluene, and xylenes (BTX), which can cause chronic adverse health effects on human beings. Passive sampling has...
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NIR reflectance determination of warfarin in a solid preparation commercialized at different API mass proportions

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40488A, Paper

Julen Arruabarrena, Santiago Maspoch, Jordi Coello
Due to the need of accurate control of their therapeutic doses, warfarin-containing medicines are marketed in preparations with low, but different warfarin contents. A single Near Infrared reflectance procedure is...
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A Simplified Method for Determination of Organic Mercury in Soils

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40566D, Paper

Rodolfo Fernandez-Martinez, Isabel Rucandio
Monitoring levels of organic mercury species at very low concentration in the environment is of concern due to their high toxicity. However, conventional methods for organic mercury determination are usually...
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Analysis of triphenylmetane dyes in seafood products: a review of extraction methods and determination by liquid chromatography coupled to mass spectrometry

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40485D, Critical Review

Noelia Lopez-Gutierrez, Roberto Romero-Gonzalez, Jose Luis Martinez Vidal, A.G. Frenich
Triphenylmetane dyes, such as malachite green (MG), crystal violet (CV) and brilliant green (BG), have been widely used to prevent and treat infections in aquaculture products due to high efficacy,...
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Evaluation of calibration approaches for quantification of pesticide residues in surface water by SPE with small-size cartridges followed by fast GC-MS

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40412A, Paper

Andrea Purdesova, Svetlana Hrouzkova, Maria Andrascikova, Zoltan Krascsenits, Eva Matisova
Fast GC-MS method for analysis of twenty four GC amenable pesticides in surface water was developed and validated. Extraction of pesticides using solid phase extraction (SPE) with small-size cartridges was...
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A rapid and sensitive method for the determination of malondialdehyde as its hydralazine derivative in human plasma using high performance liquid chromatography

Anal. Methods, 2013, Advance Article
DOI: 10.1039/C3AY26525K, Paper

Zahra Rezaei, Akram Jamshidzadeh, Ehsan Sanati
We present an accurate and reproducible method to measure MDA as its hydralazine (HDZ) derivative in plasma using high-performance liquid chromatography (HPLC).
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Setting up the Chromatographic Analysis of Anthelmintics using Crossed D-Optimal Experimental Design Methodology

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40555A, Paper

Nikolaos G. Margaritelis, Catherine K. Markopoulou, John E. Koundourellis
"Experimental design" methodology was applied to optimize the chromatographic separation and quantitative determination of six anthelmintics levamisole (LEV), thiabendazole (THI), mebendazole (MEB), albendazole (ALB), praziquantel (PRA) and niclosamide (NICL) by...
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Characterization of currently marketed heparin products: composition analysis by 2D-NMR

Anal. Methods, 2013, Advance Article
DOI: 10.1039/C3AY40226F, Paper

David A. Keire, Lucinda F. Buhse, Ali al-Hakim
HSQC cross-peaks volumes are used to quantify heparin composition.
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Carotenoids extraction and quantification: a review

Anal. Methods, 2013, Advance Article
DOI: 10.1039/C3AY26295B, Critical Review

Hector Arvayo-Enriquez, Iram Mondaca-Fernandez, Pablo Gortarez-Moroyoqui, Jaime Lopez-Cervantes, Roberto Rodriguez-Ramirez
Methods of carotenoids extraction including the use of new environmentally friendly methodologies are described.
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Rapid electrochemical determination of ferulic acid based on the graphene modified glass carbon electrode

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40084K, Paper

Yanli Zhang, Yanpei Liu, Zhongming Yang, Yingcai Yang, Pengfei Pang, Gao Yuntao, Qiufen Hu
Graphene nanosheets modified glassy carbon electrode (GNs/GCE) is proposed as voltammetric sensor for ferulic acid with good sensitivity, selectivity and reproducibility. The sensor exhibits a surface-confined and quasi-reversible process for...
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Highly sensitive ultra-performance liquid chromatography/tandem mass spectrometry method for the determination of abiraterone in human plasma

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY26611G, Paper

Tanveer Ahmad Wani
ABR is a rationally designed CYP17 inhibitor that blocks the conversion of androgens from non-gonadal precursors effectively, thus reducing testosterone to undetectable levels. With the objective of reducing analysis time...
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Purification of eleutherosides by macroporous resin and the active fractions of anti-inﬂammatory and antioxidant activity from Acanthopanax senticosus extract

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40164B, Paper

Shun lLiu, Yan Chen, Lijuan Gu, Yongxia Li, Bingyi Wang, Jie Hao, Susumu Kitanaka, Heran Li
Eleutherosides were the important active ingredients of Acanthopanax senticosus, the method for purification of eleutherosides has attracted much attention. In this article, a method for purification of eleutherosides by macroporous...
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A sensitive and fast electrochemical sensor based on copper nanostructures for nitrate determination in foodstuffs and mineral waters

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY26598F, Paper

Behnam Hafezi
A fast, sensitive and accurate electrochemical sensor based on copper nanostructures for electrocatalytic determination of nitrate has been developed. Cyclic voltammetry and Hydrodynamic amperometry were employed to characterize the response...
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A High Throughput Analysis of Boronic Acids Using Ultra Performance Liquid Chromatography - Electrospray Ionization Mass Spectrometry.

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40542G, Paper

Punniyavel Jeyavel Pandiyan
An ultra high performance liquid chromatography electrospray ionization mass spectrometry method was developed for the analysis of a broad range of boronic acids present in industrial samples. A set of...
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Study of Controlled Degradation Processes and Electrophoretic Behaviour of Omeprazole and its main Degradation Products using Diode-array and ESI-IT-MS Detection

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40460A, Paper

Juan Jose Berzas Nevado, Gregorio Castaneda, Rosa Maria Dorado, Virginia Rodriguez Robledo
This paper provides chemical information of controlled degradation processes on omeprazole, and its main degradation products in aqueous solutions, using CE as analytical technique. Both diode-array and ESI-IT-MS were employed...
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Cloud point extraction coupled with HPLC-DAD for the determination of genistein and daidzein in river water

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40595H, Paper

Chun Wang, Ling Wang, Quansheng Zhao, Jun Hui Chen, Li Zheng, Ming Gang Zheng, Ru Tan Zhang, Zi Jian Wang
Applying cloud-point extraction (CPE) as a preconcentration method to determine the trace level pollutant has gained increasing attention in recent years. This work aimed at developing an analytical method to...
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Fluorescent Silver Nanoclusters Embedded Polymer Nanoparticles for Sensing Copper Ions

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40252E, Paper

Yang Li, Xumei Wang, Gang Chen, Shuping Xu, Weiqing Xu
Novel fluorescent silver nanoclusters prepared by core/shell polymer nanoparticles as templates and the photochemical growth were applied to detecting copper (Cu2+) ions in aqueous solution based on the fluorescence quenching...
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On-line separation and preconcentration system coupled with flame atomic absorption spectrometry for the determination of lead

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40271A, Paper

Teslima Dasbas[i without dot], Serife Sacmac[i without dot], Serkan Sahan, Ahmet Ulgen, Senol Kartal
A simple on-line separation/preconcentration procedure is described for the determination of trace levels of Pb(II) by flame atomic absorption spectrometry (FAAS). A mini-column packed with Dowex Marathon C (DMC) ion-exchange...
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Simultaneous extraction of four classes of antibiotics in soil, manure and sewage sludge and analysis by liquid chromatography-tandem mass spectrometry with the isotope-labelled internal standard method

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40220G, Paper

Yu Juan Huang, Miaomiao Cheng, Wenhong Li, Longhua Wu, Yongshan Chen, Yongming Luo, Peter Christie, Haibo Zhang
An analytical method for the anlysis of four classes of antibiotics (tetracyclines, sulfonamides, fluoroquinolones and macrolides) has been developed and validation in this work. After optimizing the extraction and purification,...
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Time-resolved fluoroimmunoassay for quantitative determination of thiacloprid in agricultural samples

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY00033H, Paper

Zhenjiang Liu, Xu Yan, Xiude Hua, Ming-hua Wang
A fast and sensitive indirect competitive time-resolved fluoroimmunoassay (TRFIA) for thiacloprid was developed. Europium-labeled goat anti-rabbit antibody was used as the tracer. Under optimal conditions, the TRFIA showed a 50%...
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Double-strand DNA-templated synthesis of copper nanoclusters as novel fluorescence probe for label-free detection of biothiols

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40088C, Paper

Yihui Hu, Yanmei Wu, Tingting Chen, Xia Chu, Ruqin Yu
In this work, we reported a simple and sensitive method to detect biothiols including glutathione (GSH), cysteine (Cys) and homocysteine (Hcy), using fluorescent copper nanoclusters synthesized by double-strand DNA template...
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Pyridyl- and Benzimidazole-Based Ruthenium (III) Complex for Selective Chloride Recognition through Fluorescence Spectroscopy

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40434J, Paper

Hemant Sharma, Hernandez J. Guadalupe, Jayanthi Narayanan, Herbert Hopfl, T. Pandiyan, Narinder Singh
Three ruthenium (II) and (III) metal complexes of the compositions ([Ru(1)(Cl)(PPh3)]+ (4), ([Ru(2)(Cl)(PPh3)]+ (5) and ([Ru(3)(Cl)(H2O)]2+ (6) have been synthesized from oligodentate pyridyl- (1) and benzimidazole ligands (2-3) and structurally...
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Discrimination of oral submucous fibrosis (OSF) affected oral tissues from healthy oral tissues using multivariate analysis of in-vivo fluorescence spectroscopic data: A simple and fast procedure for OSF diagnosis

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40352A, Paper

Keshav Kumar, S Sivabalan, S Ganesan, Ashok Kumar Mishra
Oral submucous fibrosis (OSF) is precancerous lesions which leads to the development of fibrous band and lose of oral mucosa elasticity. In the absence of medical treatment OSF can also...
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Multivariate Analysis of High Resolution Nuclear Magnetic Resonance Spectra in Discrete Fourier Transform Domain

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40323H, Paper

Gui Liu, X. Chen
This study presented the multivariable analysis of high resolution nuclear magnetic resonance (NMR) spectra in discrete Fourier transform (DFT) domain. Influences of external environment usually cause random shift that jeopardizes...
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LC-UV METHOD TO ASSAY N-ACETYLCYSTEINE WITHOUT DERIVATIZATION: ANALYSES OF PHARMACEUTICAL PRODUCTS

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40426A, Paper

Aline F Ourique, Karine Coradini, Paula S Chaves, Solange Cristina Garcia, Adriana R Pohlmann, Silvia Staniscuaski Guterres, Ruy Beck
A reversed-phase liquid chromatographic (LC) method with UV detection was developed and validated for the assay of N-Acetylcisteine (NAC) in granules or effervescent tablets. The method involves the use of...
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Hemoglobin/DNA/Layered double hydroxide composites for biosensing applications

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY00038A, Paper

Li-Min Liu, Li-Ping Jiang
In this paper, the Hemoglobin/DNA/Layered double hydroxide composites was fabricated by co-intercalating hemoglobin (Hb) and DNA in the interlayer galleries of Ni-Al layered double hydroxides (Ni-Al LDH) via a delamination-reassembly...
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Evaluation of Poly(vinylpyridine)-Supported Protoporphyrin Resin for the Sampling/Separation of Manganese(II) Using a Hyphenated FIA-FAAS System

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40232K, Paper

Cesar Teixeira Tarley, Talita Fogaca de Oliveira, Fernanda Midori de Oliveira, Mariana Gava Segatelli
The present study describes the synthesis of a novel solid phase extraction material based on poly(vinylpyridine)-supported protoporphyrin and its application to enhance Mn(II) preconcentration coupled with flame atomic absorption spectrometry...
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Monitoring changes in the chemical composition of dissolvable tobacco products

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40253C, Paper

Christina Rainey, Jennifer Berry, John Vincent Goodpaster
Dissolvable tobacco products are smokeless, spit-free, made from finely milled tobacco, and dissolve in the mouth of a user. In 2009, R.J. Reynolds Tobacco Co. released a line of dissolvable...
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Determination of trans-Resveratrol in Grape Seed by Coupling Liquid Extraction with Micellar Electrokinetic Chromatography

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40214B, Technical Note

Qian Zhang, Dan Qian, Hai-Bo He, Yan An, T. Wang
A new method for the determination of trans-resveratrol in grape seed was developed by coupling liquid extraction (LE) and micellar electrokinetic chromatography (MEKC). LE was employed for sample preparation and...
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Analysis of chlorpyrifos and chlorpyrifos-methyl residues in multi-environmental media by cloud-point extraction and HPLC

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY26623K, Paper

Chao Zhang, Yan Jiao Wu, She Feng Jin, Hong Yang
A method based on the cloud point extraction-high performance liquid chromatography (CPE-HPLC) has been developed for simultaneous extraction and quantification of the two pesticides chlorpyrifos and chlorpyrifos-methyl in water, soil...
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Controlled growth and molecular self-assembly of Au nanoparticles to Au nanochains: Application towards enhancement for the electrochemical determination of paracetamol

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40209F, Paper

Manoj Devaraj, Ranjithkumar Deivasigamani, Santhanalakshmi Jayadevan
In the present work a novel and facile method has been developed for controlled growth through molecular self assembly of Au nanoparticles to Au nanochains mediated by thiolated chitosan. The...
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Infrared-assisted nonionic surfactant extraction as a green analytical preparatory technique for the rapid extraction and pre-concentration of picroside I and picroside II from Picrorhiza scrophulariiflora Pennell

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40135A, Paper

Fajie Li, Yingjia Yu, Haiying Zhang, Tingting Liu, Yan Li, Gengli Duan
The extraction of picroside I and picroside II from Picrorhiza scrophulariiflora Pennell using nonionic surfactants with the assistance of infrared was investigated and the conditions for maximum yield were determined....
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Surfactant modified walnut sawdust as an alternative green support for efficient preconcentration of nickel ions from different real samples

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40669E, Paper

Mostafa Hosseinbaki, Farzaneh Shemirani
A simple and relatively selective solid phase extraction system has been described and used for determination of trace amounts of Ni (II) ions in water, soil and split peas by...
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Time Domain Nuclear Magnetic Resonance: a key complementary technique for the forensic differentiation of foam traces

Anal. Methods, 2013, Accepted Manuscript
DOI: 10.1039/C3AY40330K, Paper

Michele Mauri, Murali Krishna Dibbanti, Matteo Calzavara, Lucio Mauri, Roberto Simonutti, Valerio Causin
Polymer foams have a significant potential as contact traces for reconstructing the dynamics of felonies or for proving the presence of individuals on crime scenes. Discrimination and matching of such...
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Quantification of [small beta]-damascenone in orange juice using headspace standard addition SPME with selected ion GC-MS

Anal. Methods, 2013, 5,2630-2633
DOI: 10.1039/C3AY26089E, Paper

Kanjana Mahattanatawee, Kevin Goodner, Russell Rouseff
SPME-GC-MS standard additions analysis of [small beta]-damascenone in orange juices shows a general correlation in concentration with heat treatment.
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A single-valve sequential injection manifold (SV-SIA) for automation of air-assisted liquid-phase microextraction: stopped flow spectrophotometric determination of chromium(VI)

Anal. Methods, 2013, 5,2497-2502
DOI: 10.1039/C3AY40284C, Paper

Michal Alexovic, Vasil Andruch, Ioseph S. Balogh, Jana Sandrejova
A single-valve sequential injection setup is suggested for automation of an air-assisted liquid-phase microextraction. In order to eliminate parasitic signals, the stopped flow detection mode was employed. The developed procedure was applied for the determination of Cr(VI) in various water samples.
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LC with electrochemical and UV detection for analysis of a formulation containing gentamicin and parabens

Anal. Methods, 2013, 5,2491-2496
DOI: 10.1039/C3AY00055A, Paper

Shruti Chopra, Vicky Manyanga, Jos Hoogmartens, Erwin Adams
This study describes LC-PED and LC-UV methods for the control of gentamicin and parabens in an injectable formulation.
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Performance of a microfluidic device for in situ ToF-SIMS analysis of selected organic molecules at aqueous surfaces

Anal. Methods, 2013, 5,2515-2522
DOI: 10.1039/C3AY26513G, Paper

Li Yang, Zihua Zhu, Xiao-Ying Yu, Suntharampillai Thevuthasan, James P. Cowin
Performance of a vacuum compatible microfluidic device enabling direct ToF-SIMS imaging of aqueous surfaces is evaluated for the first time.
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Analysis of 5-hydroxytryptophan in the presence of excipients from dietary capsules: comparison between cyclic voltammetry and UV visible spectroscopy

Anal. Methods, 2013, 5,2523-2528
DOI: 10.1039/C3AY26482C, Paper

Isabel J. Tunna, Bhavik Anil Patel
Rapid detection of 5-hydroxytryptophan using voltammetry without any sample preparation steps is demonstrated.
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