Analytical Methods Blog

Jiang et al., Anal. Methods, 2013, Advance Article

In regions where commercial fisheries play a major role in the economy, large scale poisoning of the aquaculture can have a devastating effect. It is important for forensic investigations that the toxic chemicals can be identified and quantitated accurately. Haipeng Jiang and Jing Zou at the Wuhan Institute of Technology have developed an LC-MS/MS method for the simultaneous determination of three commonly used fishpond poisons: pentachlorophenol, niclosamide and fenpropathrin. These compounds are particularly challenging to detect by conventional GC-MS methods. The authors tested their procedure using a real life case study of fish poisoning in Hubei Province, China, where an unknown toxin diminished the production of farmed pearls in the area in 2010.

This paper will be free to read until Dec 10th.

Simultaneous determination of pentachlorophenol, niclosamide and fenpropathrin in fishpond water using an LC-MS/MS method for forensic investigation
Haipeng Jiang,  Yinhua Zhang,  Xiangguo Chen,  Jizhong Lv and Jing Zou
Anal. Methods, 2013, Advance Article
DOI: 10.1039/C2AY25685A

Take a look below at some wonderful HOT articles we’ve recently published this month in Analytical Methods. There are papers covering a variety of fields, including fluorimetry, catalytic cracking, live cell staining and supramolecular chemistry. These HOT papers will be free to read until Dec 5th.

Study on the supramolecular interaction of astemizole with cucurbit[7]uril and its analytical application
Guang-Quan Wang ,  Li-Ming Du ,  Yu-Hua Guo ,  Yan-Fang Qin ,  Jun-Wen Wang and Hao Wu
Anal. Methods, 2013, Advance Article
DOI: 10.1039/C2AY25929J 
 
Xanthone based Pb2+ selective turn on fluorescent probe for living cell staining
Debasis Karak ,  Arnab Banerjee ,  Sisir Lohar ,  Animesh Sahana ,  Subhra Kanti Mukhopadhyay ,  Sushanta. S. Adhikari and Debasis Das
Anal. Methods, 2013, Advance Article
DOI: 10.1039/C2AY25935D 
 

Direct determination of nickel in xylene solutions of raw material for catalytic cracking with application of graphite furnace atomic absorption spectrometry
Zofia Kowalewska
Anal. Methods, 2013, Advance Article
DOI: 10.1039/C2AY25920F 
 
Resonant waveguide grating (RWG): overcoming the problem of angular sensitivity by conical, broad-band illumination for fluorescence measurements
Tarmo Nuutinen ,  Petri Karvinen ,  Jussi Rahomäki and Pasi Vahimaa
Anal. Methods, 2013, Advance Article
DOI: 10.1039/C2AY25470K

Yu et al., Anal. Methods, 2013, Advance Article

Mutation, apoptosis and cancer can develop from damaged DNA, however the cell produces proteins capable of repairing DNA to prevent these dangerous effects. One of these proteins produced by cells, 8-oxoG DNA glycosylase/AP lyase (hOGG1), targets DNA lesions caused by reactive oxygen species. Typically studying this glycosylase requires large instrumentation, such as HPLC, or radioactive labeling. Ru-Qin Yu and coworkers at Hunan University developed a system, where the hOGG1 cleaves at the mismatch site on a DNA strand, and releases a DNAzyme mimetic, which produces a colored signal. This rapid and sensitive colorimetric assay measured the activity of hOGG1 for a range of concentrations, with an affordable DNA probe, and user-friendly instrumentation.

This paper will be free to read until Nov 30th.

A novel DNAzyme-based colorimetric assay for the detection of hOGG1 activity with lambda exonuclease cleavage
Shu-Cheng Liu, Hui-Wang Wu, Jian-hui Jiang, Guo-Li Shen and Ru-Qin Yu
Anal. Methods, 2013, Advance Article
DOI: 10.1039/C2AY26018B

Take a look below at some wonderful HOT articles we’ve recently published this month in Analytical Methods. There are papers covering a large variety of fields, including the analysis of cosmetics, semivolatiles in drinking water, microarrays, and refrigerant systems. These HOT papers will be free to read until November 19th.

Preparation of aligned porous silica monolithic capillary columns and their evaluation for HPLC
Adham Ahmed, Peter Myers and Haifei Zhang
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25671A

Fabricating three-dimensional hydrogel oligonucleotide microarrays to detect single nucleotide polymorphisms
Xia Liu, Tao Li, Dianjun Liu and Zhenxin Wang
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25904D

Measurement of iodide and caffeine content in cellulite reduction cosmetic products sold in the European market
Emilia Marchei, Daniela De Orsi, Carmine Guarino, Stefano Dorato, Roberta Pacifici and Simona Pichini
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25761K

A novel outlook on detecting microbial contamination in cosmetic products: analysis of biomarker volatile compounds by solid-phase microextraction gas chromatography-mass spectrometry
Gerardo Alvarez-Rivera, Trinidad De Miguel, Maria Llompart, Carmen Garcia-Jares, Tomas Gonzalez Villa and Marta Lores
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25833A

Development of EPA Method 525.3 for the analysis of semivolatiles in drinking water
Paul E. Grimmett and Jean W. Munch
Anal. Methods, 2013, Advance Article
DOI: 10.1039/C2AY25880C

Determination of the Raman depolarization ratio in optically active samples
Johannes Kiefer and Malte Kaspereit
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25987G

A compact comprehensive two-dimensional gas chromatography (GC×GC) approach for the analysis of biogenic VOCs
Samuel J. Edwards, Alastair C. Lewis, Stephen J. Andrews, Richard T. Lidster, Jacqueline F. Hamilton and Christopher N. Rhodes
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25710F

A sensor probe for the continuous in situ monitoring of ammonia leakage in secondary refrigerant systems
Raman Subramanian, Karl Crowley, Aoife Morrin and Anthony J. Killard
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25688F

We have a bumper crop of HOT articles in this issue of Analytical Methods. Take a look at some of the hot science that we have published in this month’s issue. These papers will be free to read until Nov 9th.

XPS investigation of a Si-diode in operation
Sefik Suzer
Anal. Methods, 2012, 4, 3527-3530
DOI: 10.1039/C2AY25901J

Using gallic acid-modified gold nanoassemblies to detect the Pb²⁺ of tea
Caiyun Jiang, Meihua Ma and Yuping Wang
Anal. Methods, 2012, 4, 3570-3574
DOI: 10.1039/C2AY25648G

Reagentless amperometric immunosensor for α-1-fetoprotein based on assembly of nano-Au@SiO₂ composite
Xiaomei Huang, Xiang Deng and Di Wu
Anal. Methods, 2012, 4, 3575-3579
DOI: 10.1039/C2AY25778E

Electrochemical sensing platform based on Schiff-base cobalt(II)/single-walled carbon nanohorns complexes system
Baoping Lu, Zhe Zhang, Jinhui Hao, Guobao Xu, Bailin Zhang and Jilin Tang
Anal. Methods, 2012, 4, 3580-3585
DOI: 10.1039/C2AY25940K

Simultaneous determination of Pb(II) and Cd(II) using an electrode modified with electropolymerized thiadiazole film
Changzhi Zhao, Hui Liu and Li Wang
Anal. Methods, 2012, 4, 3586-3592
DOI: 10.1039/C2AY25525A

The preparation and use of synthetic isotope mixtures for testing the accuracy of the PTIMS method for ¹⁰B/¹¹B isotope ratio determination using boron mannitol complex and NaCl for the formation of Na₂BO₂⁺
Radhika M. Rao, Ankush R. Parab and Suresh Kumar Aggarwal
Anal. Methods, 2012, 4, 3593-3599
DOI: 10.1039/C2AY25439E

A new matrix of MALDI-TOF MS for the analysis of thiolate-protected gold clusters
Haruki Kouchi, Hideya Kawasaki and Ryuichi Arakawa
Anal. Methods, 2012, 4, 3600-3603
DOI: 10.1039/C2AY26013A

Take a look below at some wonderful HOT articles we’ve recently published this month in Analytical Methods. There are papers covering a large variety of methods including XPS, MALDI-TOF MS, Raman spectroscopy and much more. These papers will be free to read until Oct 26th.

The preparation and use of synthetic isotope mixtures for testing the accuracy of the PTIMS method for ¹⁰B/¹¹B isotope ratio determination using boron mannitol complex and NaCl for the formation of Na₂BO₂⁺
Radhika M. Rao, Ankush R. Parab and Suresh Kumar Aggarwal
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25439E

Diagnostic segregation of human brain tumours using Fourier-transform infrared and/or Raman spectroscopy coupled with discriminant analysis
Ketan Gajjar, Lara D. Heppenstall, Weiyi Pang, Katherine M. Ashton, Júlio Trevisan, Imran I. Patel, Valon Llabjani, Helen F. Stringfellow, Pierre L. Martin-Hirsch, Timothy Dawson and Francis L. Martin
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25544H

Electrochemical sensing platform based on Schiff-base cobalt(II)/single-walled carbon nanohorns complexes system
Baoping Lu, Zhe Zhang, Jinhui Hao, Guobao Xu, Bailin Zhang and Jilin Tang
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25940K

Determination of carbonate ion contents in layered double hydroxides by FTIR spectrometry
Toshiyuki Tanaka, Yoshikazu Kameshima, Shunsuke Nishimoto and Michihiro Miyake
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25850A

A new matrix of MALDI-TOF MS for the analysis of thiolate-protected gold clusters
Haruki Kouchi, Hideya Kawasaki and Ryuichi Arakawa
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY26013A

XPS investigation of a Si-diode in operation
Sefik Suzer
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25901J

Laura Ruvuna, Web Writer

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

Researchers in Italy have developed a new technique for detecting an amphetamine and methamphetamine precursor, 1-phenyl-2-propanone, also known as benzyl methyl ketone (BMK). Catching the precursors in shipment reduces the manufacturing and availability of these dangerous drugs, but it can be difficult as the density is similar to water. Common techniques such as gas chromatography and HPLC, while effective, require large instrumentation with testing performed in the laboratory. Alternatively, Stefano Di Giovanni, Sabato D’Auria and coworkers synthesized a BMK derivative, with the goal of growing antibodies and detecting the resulting fluorescent signal from binding with BMK. Using this system, they have managed to detect down to 100 nM and, are transitioning from large laboratory equipment towards a smaller, portable optical detection device. This article will be free to read until Oct 19th.

Researchers from Central South University, Changsha, Hunan and Anyang Normal University, Anyang, Henan, China report a simple, rapid and selective colorimetric visualization of arsenic using unmodified gold nanoparticles (AuNPs) and a phytochelatin-like peptide.

The detection limit shown is 20 nM, which is lower than the World Health Organization’s (WHO) standard for drinking water, and the authors have demonstrated feasibility for the detection of arsenic in groundwater.

They say their method will be valuable for the design of new types of metal ions sensors and will likely lead to many colorimetric detection applications in environmental monitoring.

Simple, rapid and label-free colorimetric assay for arsenic based on unmodified gold nanoparticles and a phytochelatin-like peptide
Ning Xia, Yunfeng Shi, Renchun Zhang, Feng Zhao, Feng Liu and Lin Liu
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25803J

Metters et al., Anal. Methods, 2012, 4, 3140-3149

Take a look at what’s HOT in the latest issue of Analytical Methods. Amongst the many articles highlighted is a paper from Editorial Board member Craig Banks of Manchester Metropolitan University. He and his group demonstrate the successful fabrication of highly novel screen printed shallow recessed electrodes comprising different electrode materials.

All the articles below will be free to access until 19 October, and don’t forget to take a look at this issue’s cover articles.

Electroanalytical properties of screen printed shallow recessed electrodes
Jonathan P. Metters, Fang Tan, Rashid O. Kadara and Craig E. Banks
Anal. Methods, 2012,4, 3140-3149
DOI: 10.1039/C2AY25512J

(more…)

Take a look below at some wonderful HOT articles we’ve recently published this month in Analytical Methods. There are papers covering a large variety of fields, including seaweed analysis, continuous channel flow linear dichroism, immunosensors and environmental monitoring. These papers will be free to read for two weeks.

Determination of cysteamine using label-free gold nanoparticles
Vladimir V. Apyari, Stanislava G. Dmitrienko, Viktoriya V. Arkhipova, Aydar G. Atnagulov and Yuri A. Zolotov
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25675D

Continuous-channel flow linear dichroism
Xi Cheng, Maxim B. Joseph, James A. Covington, Timothy R. Dafforn, Matthew R. Hicks and Alison Rodger
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25513H

Determination of iodine species in seaweed and seawater samples using ion-pair reversed phase high performance liquid chromatography coupled with inductively coupled plasma mass spectrometry
Xu Han, Lianghui Cao, Heyong Cheng, Jinhua Liu and Zigang Xu
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25871D

Creating mass signatures for the detection of microRNA
Dickson M. Wambua, Bakhos A. Tannous and Norman H. L. Chiu
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25504A

Simultaneous determination of Pb(II) and Cd(II) using an electrode modified with electropolymerized thiadiazole film
Changzhi Zhao, Hui Liu and Li Wang
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25525A

Reagentless amperometric immunosensor for α-1-fetoprotein based on assembly of nano-Au@SiO2 composite
Xiaomei Huang, Xiang Deng and Di Wu
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25778E

Improvement in accuracy and specificity of high-throughput sialic acid assay
Lam Raga A. Markely, Kanvasri N. Jonnalagadda, Martin Sinacore, Thomas Ryll and Shashi Prajapati
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25448D

An approach toward quantification of organic compounds in complex environmental samples using high-resolution electrospray ionization mass spectrometry
Tran B. Nguyen, Sergey A. Nizkorodov, Alexander Laskin and Julia Laskin
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25682G

Surface plasmon resonance imaging of the enzymatic degradation of cellulose microfibrils
Scott G. Allen, Oleh M. Tanchak, Amanda Quirk, Adam N. Raegen, Kyle Reiter, Rebecca Whitney, Anthony J. Clarke, Jacek Lipkowski and John R. Dutcher
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25762A