Analytical Methods Blog

By Pui Sai Lau, Web Writer

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

With the prevalent misuse of amphetamine and its derivatives, drug testing is routinely performed in clinical and forensic laboratories. Effective testing requires high efficiency and reproducibility for analysis of complex, real samples. Hossein Ali Mashayekhi and colleagues from Islamic Azad University, Iran, have created a novel strategy to detect amphetamine and its related compounds in human urine by using ultrasound-assisted emulsification microextraction and gas chromatography. Find out more details by accessing the link below.

Simultaneous determination of amphetamine and related compounds in human urine using ultrasound-assisted emulsification microextraction and gas chromatography
Mohammad Rezaee, Hossein Ali Mashayekhi and Shirin Sadeghi Garmaroudi
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25461A

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 August! Included is a contribution from our Advisory Board member Craig E. Banks. The range of topics covered include screen printed electrodes, bioanalytical analysis, fluorescent probes, and water analysis.

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

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

A solid-phase extraction liquid chromatography-tandem mass spectrometry method for the percutaneous absorption assessment of 3-(4′-methylbenzylidene)camphor via human urine analysis
Zacarías León-González, Alberto Chisvert, Isabel Fernández and Amparo Salvador
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25490E

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

Selective solid-phase extraction using molecularly imprinted polymers for the analysis of norfloxacin in fish
Baixin Zhang, Jingchan Zhao, Bijing Sha and Miao Xian
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25707F

Anthracene appended coumarin derivative as a Cr(III) selective turn-on fluorescent probe for living cell imaging: a green approach towards speciation studies
Subarna Guha, Sisir Lohar, Arnab Banerjee, Animesh Sahana, Subhra Kanti Mukhopadhyay, Jesús Sanmartín Matalobos and Debasis Das
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25693B

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

Novel magnetic ion imprinted polymer as a highly selective sorbent for extraction of gold ions in aqueous samples
Homeira Ebrahimzadeh, Elahe Moazzen, Mostafa M. Amini and Omid Sadeghi
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25407G

Well-defined surface ion-imprinted magnetic microspheres for facile onsite monitoring of lead ions at trace level in water
Yang Cui, Jia-Qi Liu, Zhang-Jun Hu, Xia-Wei Xu and Hong-Wen Gao
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25656H

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

By Pui Sai Lau, Web Writer

Many people loathe the aches and pains attributed to influenza (or flu) infection, which is especially prevalent during the winter months. However, depending on the aggressiveness of the pathogen subtype, more severe health complications including mortality can occur, particularly in infants and the elderly. While several detection methods are available for influenza diagnosis, limitations still exist such as long-analysis time, requirement of intensive labor and high cost. To tackle some of these issues, Ángel Maquieira and colleagues from Valencia, Spain have developed a sandwich immunoassay on commercial DVDs that makes use of a standard DVD reader for quantification. Check out their discovery by accessing the link below!

Influenza A virus infection diagnosis based on DVD reader technology
María-José Bañuls, María-Victoria González-Pedro, Rosa Puchades and Ángel Maquieira
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25493J

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

This month we have a HOT article from Brett Paull, the Editor in Chief of Analytical Methods. Sialic acids have many biological roles. The importance of sialic acids to a glycoprotein’s half-life means that there is a strong need to determine the sialic acid content of a glycoprotein when examining its function and activity as a potential therapeutic. A team from Ireland and Australia, have developed a very rapid and analytically robust method that can quantitatively determine total free sialic acid, based upon monolithic reversed-phase chromatography. This method has been developed and specifically applied to process a range of very complex samples from the biopharmaceutical industry. This article will be free to read for 2 weeks.

Rapid and sensitive chromatographic determination of free sialic acid in complex bio-pharma fermentation media samples
Hassan Alwael, Damian Connolly and Brett Paull
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25299F

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

By Laura Ruvuna, Web Writer

Sensors don’t always require expensive equipment or complex attachment chemistries, and when possible a visual color change is enough. In this HOT article, Maotian Xu and colleagues from Shangqiu Normal University, China, have detected lysine effectively and cheaply using the colorimetric properties of gold nanoparticles during aggregation. The lysine content in food is important for growth and development, and using this assay it was detected in three different commercial food sources. In addition to the visual change, the UV-Vis spectra scaled linearly with lysine concentration. See more about this simple but sensitivity system below, it will be free to read for 2 weeks.

Colorimetric detection of lysine using gold nanoparticles aggregation
Yanli Zhou,  Zhichong Yang and Maotian Xu
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25475A

Take a look at some of the HOT articles we’ve published recently in Analytical Methods! These papers cover a wide variety of topics such as analysis of food, water pollution, zeolite columns and quantum dots. These papers will be free to access for 2 weeks.

Sensitive and rapid monitoring of water pollution level based on the signal enhancement of an activated glassy carbon electrode
Can Wu, Shijin Yu, Bin Lin, Qin Cheng and Kangbing Wu
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25523E

Determination of trace leaching phthalate esters in water by magnetic solid phase extraction based on magnetic multi-walled carbon nanotubes followed by GC-MS/MS
Yanna Jiao, Shanliang Fu, Li Ding, Qiang Gong, Shaohua Zhu, Libing Wang and Hui Li
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25386K

Mollica & Charles et al, Anal. Methods, 2012, Advance Article

Towards the rationalization of the MALDI process: a combined mass spectrometry/solid-state NMR approach
Yannis Major, Hélène Pizzala, Fabio Ziarelli, Trang N. T. Phan, Giulia Mollica and Laurence Charles
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25708D

Preparative size-exclusion chromatography for separation and purification of water-stable Cd-based quantum dots
Luis Alamo-Nole, Sonia Bailon-Ruiz, Oscar Perales-Perez and Felix R. Roman
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25629K

Hydrochromic fluorescence of organo-boronium-avobenzone complexes
Xuepeng Zhang and Guoqing Zhang
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25424G

Multi-branch chemiluminescence–molecular imprinting sensor for sequential determination of carbofuran and omethoate in foodstuff
Shenguang Ge, Peini Zhao, Mei Yan, Dejin Zang and Jinghua Yu
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25410G

Zhang & Zhang, Anal. Methods, 2012, Advance Article

Surface chemistry and linker effects on lectin–carbohydrate recognition for glycan microarrays
Michelle Kilcoyne, Jared Q. Gerlach, Marian Kane and Lokesh Joshi
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25532D

Determination of anionic impurities in hexafluorosilicic acid by capillary zone electrophoresis
Nerea Ayarza, Juan M. G. Góngora, Rosa María Alonso and Rosa María Jiménez
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25553G

Hierarchical Fe-ZSM-5 zeolite monolithic column for enhanced phosphorylated protein immobilization and identification
Wenzhong Zhang, Deju Wang, Huai Sun, Jun Yao, Fang Xu and Pengyuan Yang
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25454A

By Pui Sai Lau, Web Writer

For many decades, natural radioactive elements have been used to date the age of minerals and rocks, and also trace the geological origins of archaeological, organic and inorganic materials. Various methods have been explored to measure radioisotopes in often complex samples and retrieve information that may otherwise be lost from possibly eons ago. Patrick Degryse, Frank Vanhaecke, the new Chair for JAAS and others from Belgium have recently demonstrated a modern-day application of strontium isotopic analysis. The team has forensically identified human remains by determining the ⁸⁷Sr/⁸⁶Sr ratio of bone and tooth enamel using multi-collector ICP-mass spectrometry. Read more about their exciting discovery below!

Strontium isotopic analysis as an experimental auxiliary technique in forensic identification of human remains
Patrick Degryse, David De Muynck, Steve Delporte, Sara Boyen, Laure Jadoul, Joan De Winne, Tatiana Ivaneanu and Frank Vanhaecke
Anal. Methods, 2012, Advance Article
DOI: 10.1039/C2AY25035G

To match our current weather, this month’s issue of Analytical Methods is hot, hot, HOT! We have 11 HOT papers for you to read and digest. So take a look below at some of this month’s hot science. These papers will be free to read for 2 weeks.

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, 4, 2224
DOI: 10.1039/C2AY25099C

Silver paste nanocomposite electrode as a new metallic electrode for amperometric determination of hydrazine
Afsaneh Safavi and Maryam Tohidi
Anal. Methods, 2012, 4, 2233
DOI: 10.1039/C2AY05851K

Development of an in situ dissolved oxygen measurement system and calculation of its effective diffusion coefficient in a biofilm
Yun-Fang Ning, You-Peng Chen, Shan Li, Jin-Song Guo, Xu Gao, Fang Fang, Yu Shen and Kun Zhang
Anal. Methods, 2012, 4, 2242
DOI: 10.1039/C2AY25132A

Matrixes in UV-MALDI mass spectrometry – crystals of organic salts versus co-crystals of neutral polyfunctional carboxylic acids
Bojidarka B. Ivanova and Michael Spiteller
Anal. Methods, 2012, 4, 2247
DOI: 10.1039/C2AY25090J

Thiophene anchored naphthalene derivative: Cr³⁺ selective turn-on fluorescent probe for living cell imaging
Sudipta Das, Animesh Sahana, Arnab Banerjee, Sisir Lohar, Subarna Guha, Jesús Sanmartín Matalobos and Debasis Das
Anal. Methods, 2012, 4, 2254
DOI: 10.1039/C2AY25384D

Thermal behavior of drawn poly(lactic acid)-nanocomposite fiber probed by near-infrared hyperspectral imaging based on roundtrip temperature scan
Hideyuki Shinzawa, Masakazu Nishida, Toshiyuki Tanaka and Wataru Kanematsu
Anal. Methods, 2012, 4, 2259
DOI: 10.1039/C2AY25204J

A highly sensitive resonance scattering based sensor using unmodified gold nanoparticles for danunomycin detection in aqueous solution
Lan He, Wenting Zhi, Yuangen Wu, Shenshan zhan, Faze Wang, Haibo Xing and Pei zhou
Anal. Methods, 2012, 4, 2266
DOI: 10.1039/C2AY25596K

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, 4, 2272
DOI: 10.1039/C2AY25302J

A capillary electrophoresis method for the simultaneous analysis of ammonium and metals in animal wastes used in biogas production
Mari Jaakkola, Maija Lipponen, Johanna Kallio and Vesa Virtanen
Anal. Methods, 2012, 4, 2278
DOI: 10.1039/C2AY25307K

Determination of enantiomer compositions of propranolol enantiomers by chiral ionic liquid as a chiral selector and the UV-assisted spectrophotometric method
Ghodratollah Absalan, Yousef Alipour, Zahra Rezaei and Morteza Akhond
Anal. Methods, 2012, 4, 2283
DOI: 10.1039/C2AY25161B

Determination of uric acid in biological samples on the pretreated pencil graphite electrode
Esmaeel Alipou, Mir Reza Majidi, Afsaneh Saadatirad and Sayed Mahdi Golabi
Anal. Methods, 2012, 4, 2288
DOI: 10.1039/C2AY25463H