Analytical Methods Blog

Analytical methods for food and agriculture

13 Dec 2011

Images courtesy of Fotolia (left) and iStock (right)

Analysis of food and agricultural products or materials is a very topical subject at present. Development of sensitive, accurate and versatile analytical methods are important in order to monitor food and agricultural standards, understand the composition or structure of food, and to detect levels of toxic or unwanted chemicals. Recent examples include monitoring levels of melamine in milk or pesticide residues in food.

Analytical Methods presents an excellent forum for such work, and below is a sample of the high-quality work we have published in this area. These articles are free to access until the 13th January 2012 so make the most of this and take a look!

And don’t forget to stay informed of all our latest content by signing up to our e-alert or following us on Twitter: @methodsrsc and @analystrsc

Solid phase extraction and sequential elution for pre-concentration of traces of Mn and Zn in analysis of honey by flame atomic absorption spectrometry, Pawel Pohl, Helena Stecka and Piotr Jamroz, Anal. Methods, 2012, DOI: 10.1039/C1AY05637A

A simple and high-throughput method of ultrasonic extraction-capillary electrophoresis for determination of melamine in milk, Yun-Kai Lv, Yue-Na Sun, Li-Min Wang, Cui-Ling Jia and Han-Wen Sun, Anal. Methods, 2011, 3, 2557-2561

Methods of sample preparation for determination of veterinary residues in food matrices by porous monolith microextraction-based techniques, Fang Wei and Yu-Qi Feng, Anal. Methods, 2011, 3, 1246-1256

Electroanalytical determination of carbendazim by square wave adsorptive stripping voltammetry with a multiwalled carbon nanotubes modified electrode, Williame Farias Ribeiro, Thiago Matheus Guimarães Selva, Ilanna Campelo Lopes, Elaine Cristina S. Coelho, Sherlan Guimarães Lemos, Fabiane Caxico de Abreu, Valberes Bernardo do Nascimento and Mário César Ugulino de Araújo, Anal. Methods, 2011, 3, 1202-1206

Fluorescence images combined to statistic test for fingerprinting of citrus plants after bacterial infection, Fabíola Manhas Verbi Pereira, Débora Marcondes Bastos Pereira Milori, Edenir Rodrigues Pereira-Filho, André Leonardo Venâncio, Mariana de Sá Tavares Russo, Polyana Kelly Martins and Juliana Freitas-Astúa, Anal. Methods, 2011, 3, 552-556

Preconcentration and determination of pyrethroid insecticides in water with ionic liquid dispersive liquid-phase microextraction in combination with high performance liquid chromatography, Qingxiang Zhou, Xiaoguo Zhang and Guohong Xie, Anal. Methods, 2011, 3, 356-361

Rapid Raman mapping for chocolate analysis, I. A. Larmour, K. Faulds and D. Graham, Anal. Methods, 2010, 2, 1230-1232

A LC/UV/Vis method for determination of cyanocobalamin (VB₁₂) in multivitamin dietary supplements with on-line sample clean-up, Pei Chen, Wayne R. Wolf, Isabel Castanheira and Ana Sanches-Silva, Anal. Methods, 2010, 2, 1171-1175

Simultaneous determination of paclobutrazol and myclobutanil enantiomers in water and soil using enantioselective reversed-phase liquid chromatography, Qin Tian, Zhiqiang Zhou, Chunguang Lv, Yi Huang and Liping Ren, Anal. Methods, 2010, 2, 617-622

Application of dispersive liquid–liquid microextraction combined with sweeping micellar electrokinetic chromatography for trace analysis of six carbamate pesticides in apples, Shuaihua Zhang, Chao Li, Shuangju Song, Tao Feng, Chun Wang and Zhi Wang, Anal. Methods, 2010, 2, 54-62

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Issue 12 now online

02 Dec 2011

By Vibhuti Patel, Deputy Editor.

Analytical Methods, 2011, 3(12): 2663-2954

The final issue of Analytical Methods for 2011 is now online.

The front cover features a Critical Review on one-step manufacturing processes for the prototyping of microfluidic devices from Bastian Rapp of Karlsruhe Institute of Technology, Germany, and colleagues.

Critical Review: 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

Analytical Methods Issue 12 back cover image

Ostra et al., Anal. Methods, 2011, 3, 2726-2732

On the back cover is work from Carlos Ubide and co-workers at Universidad del País Vasco, Spain who look at process analytical chemistry in a nickel electroplating baths.

Process analytical chemistry in a nickel electroplating bath. Automated sequential injection for additive determination
M. Ostra, C. Ubide, M. Vidal and J. Zuriarrain
Anal. Methods, 2011, 3, 2726-2732
DOI: 10.1039/C1AY05434A

Thank you to all our cover authors this year, and we look forward to bringing you more exciting science (and excellent images!) in 2012.

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HOT article: Determination of amino acids and amines in mammalian decomposition fluid

23 Nov 2011

By Vibhuti Patel, Deputy Editor.

Professor Simon Lewis and colleagues from Curtin University, Perth, Australia have developed a sensitive and selective analytical method utilising liquid chromatography-electrospray ionisation-tandem mass spectrometry (LC-ESI-MS/MS) operated in multiple reaction monitoring mode for the semi-quantitative determination of 19 biogenic amines and amino acids in mammalian (porcine) decomposition fluid.

The study of mammalian soft tissue decomposition is an emerging area in forensic science. An understanding of this process is extremely important for investigations of suspicious deaths as it complicates determination of cause of death and makes the estimation of postmortem interval (PMI) very difficult. The first step to understanding this chemistry is identifying the compounds present in decomposition fluid and determining when they are produced.

Determination of amino acids and amines in mammalian decomposition fluid by direct injection liquid chromatography-electrospray ionisation-tandem mass spectrometry
Lisa M. Swann, Francesco Busetti and Simon W. Lewis
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C1AY05447C

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Analytical Methods first Impact Factor

31 Oct 2011

By May Copsey, Editor.

For every new journal , there are several important stages in its early life and development.

Step 1 - Announcement of Analytical Methods, Spring 2009

Initially there is the announcement of the journal, the appointment of the Editor-in-Chief, Associate Editors and Editorial Board members.

Next comes a flurry of activity including the journal launch event (were you there for the cake?!)

Analytical Methods Cake - Pittcon 2010

The publication of the first Advance Articles online…

DNA functionalized gold nanoparticles for bioanalysis
Yang-Wei Lin, Chi-Wei Liu and Huan-Tsung Chang
Anal. Methods, 2009, 1, 14-24, DOI: 10.1039/B9AY00036D

Screen printed electrochemical platforms for pH sensing
Dimitrios K. Kampouris, Rashid O. Kadara, Norman Jenkinson and Craig E. Banks
Anal. Methods, 2009, 1, 25-28, DOI: 10.1039/B9AY00025A

Thermo-responsive columns for HPLC: The effect of chromatographic support and polymer molecular weight on the performance of the columns
Farnoosh Roohi, Yasemin Fatoglu and Maria-Magdalena Titirici
Anal. Methods, 2009, 1, 52-58, DOI: 10.1039/B9AY00087A

Continuous flow hollow fiber liquid-phase microextraction and monitoring of NSAID pharmaceuticals in a sewage treatment plant effluent
Niklas Larsson, Estelle Petersson, Marika Rylander and Jan Åke Jönsson
Anal. Methods, 2009, 1, 59-67, DOI: 10.1039/B9AY00015A

A new approach for measuring the redox state and redox capacity in milk
Tomer Noyhouzer, Ron Kohen and Daniel Mandler
Anal. Methods, 2009, 1, 93-99, DOI: 10.1039/B9AY00078J

The first issue….

Then there is a slight lull, as the publication of the journal begins to become more established in the minds of the community.

After approximately 18 months to 2 years in the lifetime of a journal, there then comes an increasingly important announcement – the first impact factor. The number which authors and readers really want to know, and increasingly these days, often on which so much depends.

In June of this year, Thomson Reuters released the 2010 Journal Citation Report – their annual updating of journal Impact Factors. There is a vast quantity of information in this Report, however it is this particular metric which everyone rushes to find.

For Analytical Methods, our first impact factor was announced as 1.036. But what does this actually mean?

The 2010 Impact Factors are calculated as the average number of citations per article in 2010, to articles which were published in 2008 and 2009. As the first issue of Analytical Methods was published in October 2009, we only published 3 issues which are included in this calculation – a total of 28 articles.

Additionally, unlike the calculation of a full Impact Factor, where articles have up to 3 years to be read and cited, as these articles were published at the end of 2009, they had a much shorter time in the literature to be available to researchers to reference in future work.

However to date, Analytical Methods has collected 470 citations and we are seeing this number grow rapidly every week. So the signs are good that as the journal has been developing and growing, then we will see future Impact Factors follow suit.

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Thermoresponsive polymers in liquid chromatography

24 Oct 2011

By Mary Badcock, Deputy Editor.

Maria-Magdalena Titirici and colleagues have looked into the recent advances in thermoresponsive liquid chromatography which have allowed separation of biomolecule mixtures using aqueous solvents under isocratic conditions. This mini-review covers investigations into thermoresponsive polymer stationary phases and looks into the broader view and perspectives of the field.

This article is free to access until 21st November 2011! Click on the link below to read more…

Thermoresponsive polymers in liquid chromatography, Irene Tan, Farnoosh Roohi and Maria-Magdalena Titirici, Anal. Methods, 2011, DOI: 10.1039/C1AY05356F

You may also be interested in these liquid chromatography papers…

Fast analysis of flavonoids in apple juice on new generation halo column by SPE-HPLC, Imran Ali, Salma M. Z. Al-kindy, Fakhreldin O. Suliman and Syed Dilshad Alam, Anal. Methods, 2011, DOI: 10.1039/C1AY05496A

Successful characterization of degradation products of drugs using LC-MS tools: Application to piroxicam and meloxicam, Dattatray T. Modhave, Tarun Handa, Ravi P. Shah and Saranjit Singh, Anal. Methods, 2011, DOI: 10.1039/C1AY05493G

Fast and sensitive determination of aluminium with RP-HPLC using an ultra-short monolithic column, Tomas A. Remenyi, Pavel N. Nesterenko, Andrew R. Bowie, Edward C. V. Butler and Paul R. Haddad, Anal. Methods, 2011, DOI: 10.1039/C1AY05192J

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Take a look at Issue 10

10 Oct 2011

By Vibhuti Patel, Deputy Editor.

Analytical Methods, 2011, Issue 10 front cover

Analytical Methods, 2011, 3(10): 2167-2426

On the cover of the latest issue of Analytical Methods is a minireview from Kate Griffiths and colleagues at the Australian National Measurement Institute.

When using quantitative PCR, a calibration curve is commonly constructed from serial dilution of a reference DNA preparation and the test material is quantified by comparison to the curve. There are many factors in this process that can affect the accuracy of the measured value, and there have been some efforts to standardise or optimise this technique as there is ample evidence of measurement inconsistencies.

Here, Griffiths et al. present a relatively simple process for estimating measurement uncertainty for quantitative DNA measurements produced by qPCR, with a worked example.

Quantitative polymerase chain reaction: a framework for improving the quality of results and estimating uncertainty of measurement
Kate R. Griffiths, Daniel G. Burke and Kerry R. Emslie
Anal. Methods, 2011, 3, 2201-2211
DOI: 10.1039/C1AY05069A

This article will be free for 6 weeks.

You may also be interested in this review:

Critical Review: Trends in process analytical technology
Wee Chew and Paul Sharratt
Anal. Methods, 2010, 2, 1412-1438
DOI: 10.1039/C0AY00257G

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Fast and sensitive detection of aluminium with RP-HPLC

07 Oct 2011

By Mary Badcock, Deputy Editor.

Scientists from Australia have developed a method for the fast and sensitive detection of aluminium in aqueous samples via reversed-phased high-performance liquid-chromatography (RP-HPLC) using an ultra-short monolithic column.

The team led by Pavel Nesterenko demonstrated that a ‘run time’ of 2.5 min could be achieved for this method without compromising sensitivity, precision or accuracy, representing an improvement in run time by more than 50% compared to the fasted method published previously.

Read the paper for free until 4th November 2011!

You may also find these chromatography papers interesting……

Determination of estrogens in environmental water samples with solid-phase extraction packed with bamboo charcoal prior to high-performance liquid chromatography-ultraviolet detection, Jia-Bin Zhou, Cong Hu and Ru-Song Zhao, Anal. Methods, 2011, DOI: 10.1039/C1AY05453H

Chromatographic determination of active compounds in topical formulations, Ludmila Matysová, Petra Koblová, Lubomír Galla, Hana Sklenářová, Lucie Havlíková and Petr Solich, Anal. Methods, 2011, DOI: 10.1039/C1AY05336A

Three-phase hollow fiber microextraction based on carrier-mediated transport combined with HPLC-UV for the analysis of dexamethasone sodium phosphate in biological samples, Homeira Ebrahimzadeh, Yadollah Yamini, Katayoun Mahdavi Ara and Fahimeh Kamarei, Anal. Methods, 2011, 3, 2095-2101, DOI: 10.1039/C1AY05207A

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Separation Science Europe 2011

06 Oct 2011

By Vibhuti Patel, Deputy Editor.

Separation Science Europe 2011 takes place Monday 10 – Tuesday 11 October at The Royal Institution, London, UK.

The RSC is pleased to be the official supporting organisation of the meeting, which is aimed at scientists, engineers and technical experts from the diverse analytical instrumentation industries. The two-day programme will look at issues of vital importance to application chromatographers and analytical chemists working in pharmaceutical, food analysis, environmental, petrochemical and clinical laboratories.

With a varied line-up of speakers from academia and industry it’s sure to be an interesting and insightful couple of days!

I will be attending on Monday 10 October, so please do stop by the RSC stand and say hello. Of course, I’ll be happy to answer any queries about the analytical journals or RSC Publishing in general. I look forward to seeing you in London.

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Analytical Methods Blog

Analytical methods for food and agriculture

Issue 12 now online

Top ten most accessed articles in October

HOT article: Determination of amino acids and amines in mammalian decomposition fluid

Analytical Methods first Impact Factor

Thermoresponsive polymers in liquid chromatography

Top ten most accessed articles in September

Take a look at Issue 10

Fast and sensitive detection of aluminium with RP-HPLC

Separation Science Europe 2011

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