Analytical Methods Issue 7 is now online!

Jin et al., Anal. Methods, 2012, 1903

We have some very colourful images this July on the covers of Analytical Methods. The front cover image comes from Japan, where Takashi Jin from Riken, and colleagues have been developing quantum dots to be used as fluorescent probes for measuring the cytoplasmic viscosity of a single living cell.

Bovine serum albumin-coated quantum dots as a cytoplasmic viscosity probe in a single living cell
Yuko Nakane ,  Akira Sasaki ,  Masataka Kinjo and Takashi Jin
Anal. Methods, 2012, 4, 1903-1905
DOI: 10.1039/C2AY25318F

Weng & Zhou et al., Anal. Methods, 2012, 1935

Still in Asia for our inside front cover, the image comes from Xiaocheng Weng and Xiang Zhou from Wuhan University, who together with colleagues have been developing a sensor to detect silver and cysteine with the use of graphene oxide and G-quadruplex DNA.

Ag+ and cysteine detection by Ag+–guanine interaction based on graphene oxide and G-quadruplex DNA
Lin Liu, Wenting Liu, Tingting Hong, Xiaocheng Weng, Qianqian Zhai and Xiang Zhou
Anal. Methods, 2012, 4, 1935-1939
DOI: 10.1039/C2AY25362C

D'Auria et al., Anal. Methods, 2012, 1940

We also have a back cover this month! It features the work of Sabato D’Auria and colleagues at the Institute of Protein Biochemistry of the Italian National Research Council, and Selex-SI, Italy. Ephedrine is a precursor for the illegal preparation of amphetamines, therefore a quick and reliable detection system for its presence is essential.

A surface plasmon resonance-based biochip to reveal traces of ephedrine
Antonio Varriale, Maria Staiano, Vincenzo M. Marzullo, Maria Strianese, Stefano Di Giovannni, Giuseppe Ruggiero, Alberto Secchi, Massimiliano Dispenza, Anna Maria Fiorello and Sabato D’Auria
Anal. Methods, 2012, 4, 1940-1944
DOI: 10.1039/C2AY25231G

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HOT articles in Analytical Methods this June!

It’s been a busy month with so many great papers, so here are some HOT articles from Analytical Methods that you might have missed this June!

Why not take a look, they will be free to read for 2 weeks.

Chemiluminescence determination of ibuprofen and ketoprofen using the Fenton system in the presence of europium(III) ions
Małgorzata Kaczmarek and Stefan Lis
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25230A

Recent advances in analytical calibration with multi-way data
Alejandro C. Olivieri
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25064K

Silver paste nanocomposite electrode as a new metallic electrode for amperometric determination of hydrazine
Afsaneh Safavi and Maryam Tohidi
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY05851K

Sensor and biosensor to detect vascular graft infection: diagnosis and challenges
Mamun Jamal, Faisal M. Shaikh, Bilal Aslam and Kafil M. Razeeb
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25027F

Drug-induced hepatotoxicity: application of mass spectrometry based metabonomics
Ali Aboel Dahab and Norman W. Smith
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25413A

Trace determination of linear alkylbenzene sulfonates using ionic liquid based ultrasound-assisted dispersive liquid–liquid microextraction and response surface methodology
Majid Arvand, Elahe Bozorgzadeh, Shahab Shariati and Mohammad A. Zanjanchi
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25302J

A system for the continuous generation of simulated human breath supplemented with trace gases
Troy Hibbard, Karl Crowley, Zahra Shahbazian and Anthony J. Killard
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25195G

Making light work: a miniaturised, real-time optical sensor network for the detection of CWA simulant methyl salicylate
Karl D. Pavey, Nicholas J. FitzGerald and David J. Nielsen
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25099C

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Top ten most accessed articles in May

This month sees the following articles in Analytical Methods that are in the top ten most accessed:-

Capacitively coupled contactless conductivity detection on microfluidic systems—ten years of development
Wendell Karlos Tomazelli Coltro ,  Renato Sousa Lima ,  Thiago Pinotti Segato ,  Emanuel Carrilho ,  Dosil Pereira de Jesus ,  Claudimir Lucio do Lago and José Alberto Fracassi da Silva
Anal. Methods, 2012,4, 25-33    DOI: 10.1039/C1AY05364G

Simultaneous UV/Vis spectroscopy and surface enhanced Raman scattering of nanoparticle formation and aggregation in levitated droplets
Jonas Schenk ,  Lisa Tröbs ,  Franziska Emmerling ,  Janina Kneipp ,  Ulrich Panne and Merwe Albrecht
Anal. Methods, 2012,4, 1252-1258    DOI: 10.1039/C2AY05744A

One-step facile synthesis of N-acetylglucosamine-functionalized gold nanoparticles for direct visual and light-scattering detection of lectin from wheat germ
Erqun Song ,  Jingrong Li ,  Hong Wei and Yang Song
Anal. Methods, 2012,4, 1199-1201    DOI: 10.1039/C2AY25209K

Silver nanoparticles in the presence of Ca2+ as a selective and sensitive probe for the colorimetric detection of cysteine
Salahaddin Hajizadeh ,  Khalil Farhadi ,  Mehrdad Forough and Rahim Molaei
Anal. Methods, 2012,4, 1747-1752    DOI: 10.1039/C2AY05848K

Visual detection of copper(ii) based on the aggregation of gold nano-particles via click chemistry
Zhenyu Lin ,  Sen Gao ,  Jing Lin ,  Wenlie Lin ,  Suyan Qiu ,  Longhua Guo ,  Bin Qiu and Guonan Chen
Anal. Methods, 2012,4, 612-615    DOI: 10.1039/C2AY05765D

Preparation of magnetic mixed-templates molecularly imprinted polymer for the separation of tetracycline antibiotics from egg and honey samples
Jinhuan Kong ,  Yuzhi Wang ,  Chan Nie ,  Dan Ran and Xiaoping Jia
Anal. Methods, 2012,4, 1005-1011    DOI: 10.1039/C2AY05662C

Graphene–Au nanoparticles nanocomposite film for selective electrochemical determination of dopamine
Juan Li ,  Juan Yang ,  Zhanjun Yang ,  Yongfang Li ,  Suhua Yu ,  Qin Xu and Xiaoya Hu
Anal. Methods, 2012,4, 1725-1728    DOI: 10.1039/C2AY05926F

Precision in chemical analysis: a critical survey of uses and abuses
Michael Thompson
Anal. Methods, 2012,4, 1598-1611    DOI: 10.1039/C2AY25083G

Electrochemiluminescence based on quantum dots and their analytical application
Haiping Huang ,  Jingjing Li and Jun-Jie Zhu
Anal. Methods, 2011,3, 33-42    DOI: 10.1039/C0AY00608D

Let there be chip—towards rapid prototyping of microfluidic devices: one-step manufacturing processes
Ansgar Waldbaur ,  Holger Rapp ,  Kerstin Länge and Bastian E. Rapp
Anal. Methods, 2011,3, 2681-2716    DOI: 10.1039/C1AY05253E

Why not take a look at the articles today and blog your thoughts and comments below.

Fancy submitting an article to Analytical Methods? Then why not submit to us today  or alternatively email us your suggestions.

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HOT articles in Analytical Methods

Check out some of the HOT articles published so far this month in Analytical Methods:

Comparison of extraction conditions and normalization approaches for cellular metabolomics of adherent growing cells with GCMS
Antje Hutschenreuther, Andreas Kiontke, Gerd Birkenmeier and Claudia Birkemeyer
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25046B

A reliable and budget-friendly, solution-based analysis of multiple analytes of boiler water based on reflection scanometry
Abdolkarim Abbaspour, Elaheh TalebanpourBayat and Ehsan Mirahmadi
Anal. Methods
, 2012, Advance Article
DOI
: 10.1039/C2AY05799A

Ag+ and Cysteine Detection Based on Graphene Oxide and G-Quadruplex by Ag+-Guanine interaction
Lin Liu, Wenting Liu, Tingting Hong, Xiaocheng Weng, Qianqian Zhai and Xiang Zhou
Anal. Methods
, 2012, Advance Article
DOI
: 10.1039/C2AY25362C

Highly Selective Fluorescent Recognition of Zn2+ in Water by Terpyridine-CuCl2
Zeng Huang, Jiao Du, Jing Zhang, Xiao-Qi Yu and Lin Pu
Anal. Methods
, 2012, Advance Article
DOI
: 10.1039/C2AY25381J

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HOT articles from Analytical Methods

Detecting Al3+ with the naked eye

Aluminium has many widespread applications including, packaging materials, food additives, clinical drugs, water purification, building construction etc. Too much Al can cause damage to the central nervous system, and is believed to have a role in neurodegenerative diseases such as Alzheimer’s disease and Parkinson’s disease. Debasis Das and colleagues from The University of Burdwan, India, have developed a highly sensitive fluorescent probe that can detect Al3+, with a green glow that can be seen by the naked eye. Click on the link below to read more.

Das et al., Anal. Methods, 2012, Advance Article

An Al3+ induced green luminescent fluorescent probe for cell imaging and naked eye detection
Debasis Karak, Sisir Lohar, Animesh Sahana, Subarna Guha, Arnab Banerjee and Debasis Das
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25226K

Measuring gas phase formaldehyde

Pang & Lewis, Anal. Methods, 2012, Advance Article

Xiaobing Pang and Alastair C. Lewis from the University of York have developed a microfluidic lab-on-chip derivatisation technique and optimized it to achieve a quick and sensitive determination of ambient gaseous formaldehyde when combined with GC-MS. Formaldehyde plays an important role in atmospheric chemistry and is a common pollutant of indoor air. As such, developing a quick and accurate method of detecting it is crucial. Click through on the link below to read more about this important research.

A microfluidic lab-on-chip derivatisation technique for the measurement of gas phase formaldehyde
Xiaobing Pang and Alastair C. Lewis
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25028D

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HOT articles in Issue 6 of Analytical Methods

There are quite a few HOT articles in this month’s issue from Analytical Methods. Take a look at some of the HOT science below. The papers below will be free to access for two weeks.

From the Pharmaceutical Analysis theme we have a communication from Zhenghua Song and colleagues from the Northwest University, China, who have studied the interaction behavior of catalase with cephalosporins using luminol as a luminescence probe.

Study on the interaction behavior of catalase with cephalosporins by chemiluminescence with flow injection analysis
Donghua Chen, Zhuming Wang, Yun Zhang, Xunyu Xiong and Zhenghua Song
Anal. Methods, 2012, 4, 1485-1487
DOI: 10.1039/C2AY05642A

We have a critical review from Michael Thompson, from Birkbeck, University of London, UK. He discuses the precision in chemical analysis and looks at the various conditions under which precision is assessed and its relevance to various quality-related practices.

Precision in chemical analysis: a critical survey of uses and abuses
Michael Thompson
Anal. Methods, 2012, 4, 1598-1611
DOI: 10.1039/C2AY25083G

We also have many other brilliant papers in June’s issue on a number of topics including therapeutics, colorimetric probes, Raman scattering, nanomaterials, and pesticide sampling, to name a few.

Identification of enzyme inhibitors using therapeutic target protein–magnetic nanoparticle conjugates
Lin-Sen Qing, Nan Tang, Ying Xue, Jian Liang, Yi-Ming Liu and Xun Liao
Anal. Methods, 2012, 4, 1612-1615
DOI: 10.1039/C2AY25320H

Sulfite recognition and sensing using Au nanoparticles as colorimetric probe: a judicious combination between anionic binding sites and plasmonic nanoparticles
Jia Zhang, Yue Yuan, Xiaolei Wang and Xiurong Yang
Anal. Methods, 2012, 4, 1616-1618
DOI: 10.1039/C2AY25181G

Biomagnetic glass beads for protein separation and detection based on surface-enhanced Raman scattering
Lei Chen, Xiao Xia Han, Zhinan Guo, Xu Wang, Weidong Ruan, Wei Song, Bing Zhao and Yukihiro Ozaki
Anal. Methods, 2012, 4, 1643-1647
DOI: 10.1039/C2AY25244A

Non-invasive monitoring of temperature stress in Arabidopsis thaliana roots, using ion amperometry
Y. Sulaiman, Marc R. Knight and R. Kataky
Anal. Methods, 2012, 4, 1656-1661
DOI: 10.1039/C2AY05747F

Front cover, Anal. Methods, 2012, Issue 6Graphene oxide as a nano-platform for ATP detection based on aptamer chemistry
Wen Dan Pu, Li Zhang and Cheng Zhi Huang
Anal. Methods, 2012, 4, 1662-1666
DOI: 10.1039/C2AY25166C

A quantitative assessment of the chemical variation in food grade polyethylene cling film, a common wrapping material for illicit drugs, using attenuated total reflection-Fourier transform infrared spectroscopy
Stephen W. Holman, Trevor F. Emmett and Michael D. Cole
Anal. Methods, 2012, 4, 1667-1673
DOI: 10.1039/C2AY05889H

Green extraction using catanionic surfactants of trimethyltetradecyl ammonium bromide–sodium dodecyl sulfate for preconcentration of organophosphorus pesticides in fruit samples
Ketsarin Seebunrueng, Yanawath Santaladchaiyakit and Supalax Srijaranai
Anal. Methods, 2012, 4, 1674-1680
DOI: 10.1039/C2AY25238D

Automatic miniaturized flow methodology with in-line solid-phase extraction for quinine determination in biological samples
A. Margarida Vaz, André R. T. S. Araújo, João L. M. Santos, José L. F. C. Lima and M. Lúcia M. F. S. Saraiva
Anal. Methods, 2012, 4, 1681-1686
DOI: 10.1039/C2AY05818A

Electrochemical detection of dopamine in the presence of epinephrine, uric acid and ascorbic acid using a graphene-modified electrode
Xinying Ma, Mingyong Chao and Zhaoxia Wang
Anal. Methods, 2012, 4, 1687-1692
DOI: 10.1039/C2AY25040C

Statistical analysis of discrete encapsulation of nanomaterials in colloidal capsules
Follow Analytical Methods on Twitter: @methodsrscTatsuya Sakakura, Kazuya Nishimura, Hiroaki Suzuki and Tetsuya Yomo
Anal. Methods, 2012, 4, 1648-1655
DOI: 10.1039/C2AY25105A

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HOT article: Rapid determination of enantiomeric excess

This HOT article from Xiaojing Chen and co-workers of Wenzhou University, Zhejiang Province, China, looks at the analysis of enantiomeric excess. The enantiomeric forms of many compounds exert different physiological and therapeutic effects, which are an important consideration in pharmaceutical and agrochemical research, leading to large and increasing demands for single-enantiomer products.

Many existing approaches can be time-consuming and destructive, but NMR has wide applicability due to its high speed, reliable detection for quantitative and qualitative analysis. The drawback, however, is the need for an equivalent or excess amount of the chiral reagent required to give rise to signal splitting, and these reagents are usually expensive or difficult to obtain.

Here, the authors selected quinine, a commercially available and inexpensive reagent, as a chiral shift reagent to induce discrimination in the NMR spectra of enantio-isomers. They say their findings provide an accurate, rapid, and inexpensive method of determining the enantiomeric purity of amino acid derivatives, and show great potential in both peptide and pharmaceutical syntheses.

Communication: Rapid determination of enantiomeric excess of protected amino acids by catalytic amounts of chiral reagent
Xiangou Zhu, Jun Jiang, Xinxiang Lei and Xiaojing Chen
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25102G

This paper will be free to access until 21 June 2012.

Rapid determination of enantiomeric excess of protected amino acids by catalytic amounts of chiral reagent

Zhu et al., Anal. Methods, 2012, Advance Article

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Analytical Methods Issue 6 now online!

Front cover, Anal. Methods, 2012, Issue 6This month’s issue of Analytical Methods features articles on the theme of Pharmaceutical Analysis. Why not have a read of the editorial for this issue written by our guest editor Melissa Hanna-Brown, from Pfizer Global R&D Labs, UK.

Pharmaceutical Analysis
Melissa Hanna-Brown
Anal. Methods, 2012, 4, 1484-1484
DOI: 10.1039/C2AY90024F

The cover image for this month comes from Raluca-Ioana Stefan-van Staden and Rahel Girmai Bokretsion from the National Institute of Research for Electrochemistry and Condensed Matter, Bucharest, Romania. Together they were looking at the enantioanalysis of ketoprofen by using three enantioselective, potentiometric membrane electrodes based on C60 fullerene and its derivatives. This paper will be free to read for 6 weeks.

Enantioanalysis of ketoprofen based on its interaction with C60 fullerene and its derivatives
Raluca-Ioana Stefan-van Staden and Rahel Girmai Bokretsion
Anal. Methods, 2012, 4, 1492-1497
DOI: 10.1039/C2AY05515E

Also in this month’s issue is the latest Technical Brief from the Analytical Methods Committee, which is free to access for all.

Quality control of routine sampling in chemical analysis
Analytical Methods Committee, AMCTB No 51
Anal. Methods, 2012, 4, 1482-1483
DOI: 10.1039/C2AY90022J

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HOT Article: A biochip for detecting ephedrine

A surface plasmon resonance-based biochip to reveal traces of ephedrine

D'Auria et al., Anal. Methods, 2012, Advance Article

From Italy, we have a team of scientists that have developed a biochip device that can detect ephedrine. Sabato D’Auria from the Laboratory for Molecular Sensing, IBP-CNR, and colleagues designed the chip to combine an immunochemical method with surface plasmon resonance spectroscopy to detect ephedrine at levels as low as 33 ng per mL. Ephedrine is a chemical precursor used to illegally produce amphetamines and therefore a quick and easy method to detect it is important.

A surface plasmon resonance-based biochip to reveal traces of ephedrine
Antonio Varriale, Maria Staiano, Vincenzo M. Marzullo, Maria Strianese, Stefano Di Giovannni, Giuseppe Ruggiero, Alberto Secchi, Massimiliano Dispenza, Anna Maria Fiorello and Sabato D’Auria
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25231G

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HOT articles from Analytical Methods this May

It’s been a busy month with so many great papers, so here are some HOT articles from Analytical Methods that you might have missed this May!

Why not take a look, they will be free to read for 2 weeks.

Analytical Methods, 2012, Vol 4, Issue 5, front coverAutomatic miniaturized flow methodology with in-line solid-phase extraction for quinine determination in biological samples
A. Margarida Vaz, André R. T. S. Araújo, João L. M. Santos, José L. F. C. Lima and M. Lúcia M. F. S. Saraiva
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY05818A

A selective fluorogenic sensor for visual detection of nitrite
Zhongwei Xue, Zhisheng Wu and Shoufa Han
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25107H

Evaluation of an alternate microwave-assisted thermal desorption technique: compatibility with charcoal active and passive sampling for BTX exposure assessment in workplace atmospheres
Williams Estève and Eddy Langlois
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25164G

Precision in chemical analysis: a critical survey of uses and abuses
Michael Thompson
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25083G

Easy fabrication of a vibrating foil electrode
Min Lu,  Neil V. Rees and Richard G. Compton
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25352F

Analytical Methods, 2012, Vol 4, Issue 5, inside front coverIdentification of enzyme inhibitors using therapeutic target protein–magnetic nanoparticle conjugates
Lin-Sen Qing, Nan Tang, Ying Xue, Jian Liang, Yi-Ming Liu and Xun Liao
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25320H

Chemical modificomics: a novel strategy for efficient biomarker discovery through chemical modifications on a target peptide
Takaaki Goto, Shota Kojima, Shohei Shitamichi, Seon Hwa Lee and Tomoyuki Oe
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY05841C

Green extraction using catanionic surfactants of trimethyltetradecyl ammonium bromide–sodium dodecyl sulfate for preconcentration of organophosphorus pesticides in fruit samples
Ketsarin Seebunrueng, Yanawath Santaladchaiyakit and Supalax Srijaranai
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25238D

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