Analytical Chemistry News

A loop-mediated isothermal amplification-based method for the visual detection of Vibrio parahaemolyticus within only 1 hour, from shrimp sampling to results

RSC - Anal. Methods latest articles - Wed, 02/15/2017 - 04:13
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00165G, CommunicationRui Wang, Xingning Xiao, Yuan Chen, Jun Wu, Wenjuan Qian, Liu Wang, Yuan Liu, Feng Ji, Jian Wu
A quite simple, sensitive and visual detection method was developed for in situ determination of Vibrio parahaemolyticus within only 1 hour, from contaminated shrimp samples up to results. This method...
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Colorimetric Probe for Copper(II) Ions Detection Based on Cost-effective Aminoquinoline Derivative

RSC - Anal. Methods latest articles - Wed, 02/15/2017 - 04:13
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03428D, PaperYun Wang, Weijie Wan, Suyan Qiu, Luo Lin guang, Youguo Li, Longhua Guo, Zhenyu Lin, Guonan Chen
A readily available aminoquinoline derivative (5-(quinolin-8-yliminol) pentanal, QYP) is used as a new cost-effective colorimetric probe for Cu2+ ions detection by forming a complex with stoichiometry of 1:2. The QYP...
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Highly Sensitive Analysis of Organometallic Compounds Based on Molecularly Imprinted Electrochemical Sensors

RSC - Anal. Methods latest articles - Wed, 02/15/2017 - 04:13
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03320B, PaperXiaoping Wei, Ting Wu, Yali Yuan, Ma Xionghui, Jianping Li
A highly sensitive molecularly imprinted electrochemical sensor constructed by a novel microporous-metal-organic-framework for the detection of thimerosal was developed. A monolayer of 4-aminothiophenol (4-ATP) was firstly self-assembled on the surface...
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Synthesis of New Benzothiazole Schiff Base as Selective and Sensitive Colorimetric Sensor for Arsenic on-site Detection at ppb Level

RSC - Anal. Methods latest articles - Tue, 02/14/2017 - 07:00
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03302D, PaperKalpana Chauhan, Prem Singh, Bhawana Kumari, Rakesh Kumar Singhal
The exposure of millions of people to unsafe levels of geogenic pollutant arsenic in drinking waters has sounded the alarm bells for the development of low-cost methods for on-site continuous...
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Sensitive method for determination of molybdenum in natural groundwater at sub-ppb levels using DLLME coupled to ETAAS

RSC - Anal. Methods latest articles - Tue, 02/14/2017 - 04:56
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03435G, PaperFlorencia Tissot, Julia Torres, Moises Knochen
Molybdenum is an essential trace element of biological and environmental relevance. Monitoring its content in water sources is very important from the standpoint of health and environment. Given the very...
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Electrochemical Algal Biosensor based on Silica coated ZnO Quantum Dots for Selective Determination of Acephate

RSC - Anal. Methods latest articles - Tue, 02/14/2017 - 04:56
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00111H, PaperManisha Pabbi, Susheel K Mittal
An electrochemical biosensor for the determination of acephate pesticide was developed based on algal modified silica coated ZnO quantum dots (QDs). The surface active alkaline phosphatase enzyme on the Chlorella...
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Metabolic pathway of flonicamid in oranges using an orthogonal approach based on high resolution mass spectrometry and nuclear magnetic resonance

RSC - Anal. Methods latest articles - Tue, 02/14/2017 - 03:55
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00101K, PaperRosalia Lopez-Ruiz, Ana Belen Ruiz, Roberto Romero-Gonzalez, Ignacio Fernandez, Jose Luis Martinez Vidal, Antonia Garrido Frenich
An orthogonal approach has been used to perform a metabolic profiling study of flonicamid in orange fruits. Nuclear magnetic resonance (NMR) and high resolution mass spectrometry (HRMS) have been applied...
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Demonstration of a Tailorable and PCR-free Detection of Enterococcus DNA Isolated From Soil Samples

RSC - Anal. Methods latest articles - Mon, 02/13/2017 - 09:37
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03309A, PaperNatashya Falcone, Zhe She, Chai Chen, Bin Dong, Daniel Yi, Heinz-Bernhard Kraatz
Bacteria detection is crucial for water and environmental monitoring. The challeague in this sector is to have a method specific to a range of pathogens of interests, but not too...
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Simple, effective and highly sensitive analytical method for determining caffeine in tea and energy drink samples and method optimization using central composite design

RSC - Anal. Methods latest articles - Mon, 02/13/2017 - 08:36
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03490J, PaperSamira Yousefi, Marzieh Kamankesh, Sahar Jazaeri, Abdolmohammad Attaran, Abdorreza Mohammadi
A rapid, simple and highly sensitive analytical method based on microextraction method followed by high-performance liquid chromatography was developed for the determination of caffeine in different tea and energy drink...
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Hydrophilic interaction liquid chromatography tandem mass spectrometry method for the identification and determination of cationic starch derivates in air samples

RSC - Anal. Methods latest articles - Mon, 02/13/2017 - 05:32
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03409H, PaperFabio Gosetti, Eleonora Mazzucco, Andrea Secco, Elisa Robotti, Marcello Manfredi, Emilio Marengo
The industrial processes of starch cationization are widely used and the workers must protect their health from the potential presence of toxic species, such as 2,3-epoxypropyltrimethylammonium chloride (ETA or Quab...
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Improved solid-phase extraction protocol and sensitive quantification of six microcystins in water using an HPLC-orbitrap mass spectrometry system

RSC - Anal. Methods latest articles - Mon, 02/13/2017 - 05:32
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03459D, PaperDilrukshika S. W. Palagama, Raymond E West III, Dragan Isailovic
A solid-phase extraction (SPE) protocol was developed and combined with HPLC-ESI-MS for the quantification of common cyanobacterial toxins, microcystins (MCs), in water. An HPLC binary gradient was established for the...
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Detection of Cortisol in Serum Using Quantitative Resonance Raman Spectroscopy

RSC - Anal. Methods latest articles - Mon, 02/13/2017 - 05:32
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03296F, PaperKirsten Gracie, Susan Pang, Gerwyn M Jones, Karen Faulds, Julian Braybrook, Duncan Graham
Measurement of cortisol in serum is used commonly as an indicator of stress and disease. Conventional analytical techniques have limited utility given that they remain largely laboratory based, they do...
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Application of targeted 1H NMR profiling to assess the seed vitality of soybean [Glycine max (L.) Merr.]

RSC - Anal. Methods latest articles - Mon, 02/13/2017 - 04:31
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY02867E, PaperWen-Ting Qin, Cai-qiong Yang, Iqbal Nasir, Jun-cai Deng, Jing Zhang, Kai Shu, Junbo Du, Feng Yang, Wen-yu Yang, Jiang Liu
Assessment of seed vitality was commonly hampered for phytologist, especially to the small amount of precious germplasms involving breeding research. Researchers tried to avoid loss of precious samples as much...
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Synthesis and evaluation of ion imprinted sol-gel material of selenite

RSC - Anal. Methods latest articles - Mon, 02/13/2017 - 04:31
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03286A, PaperChang Shi, Guo-Sheng Ding, An-na Tang, Yuanyuan Qiao
Highly selective selenite (SeO32-) ion imprinted polymers (Se (IV)-IIPs) were prepared by the combination of surface ion imprinting and sol-gel techniques, and then successfully used for the selective removal and...
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A novel GC-MS method for the determination and quantification of metformin in surface water

RSC - Anal. Methods latest articles - Mon, 02/13/2017 - 03:31
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY02606K, CommunicationCaroline Goedecke, Ina Fettig, Christian Piechotta, Rosemarie Philipp, Sven Uwe Geissen
The drug therapy for diabetes mellitus has increased significantly in recent years. 1,1-dimethylbiguanide hydrochloride (metformin) is the most common drug used for the treatment of diabetes. Metfomin is not metabolized...
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Development of competitive indirect ELISAs with flexible working range for the simple quantification of melatonin in medicinal foods

RSC - Anal. Methods latest articles - Fri, 02/10/2017 - 12:40
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03380F, PaperZi-Jian Chen, Hui-Jun Fu, Lin Luo, Yuan-Ming Sun, Jin-Yi Yang, Daoping Zeng, Yu-Dong Shen, Zhen-Lin Xu
Melatonin (MT) is a hormone usually used in medicinal foods for all kinds of purpose. The monitor of its content is necessary to guarantee the quality of medicinal foods as...
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Bisulfite-free approaches for DNA methylation profiling

RSC - Anal. Methods latest articles - Thu, 02/09/2017 - 09:54
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00232G, Critical ReviewTakaaki Kurinomaru, Ryoji Kurita
The determination of epigenetic modification, especially that of 5-methylcytosine in the CpG sequence in mammals, has attracted attention because it should prove valuable in a wide range of research fields...
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A sheath-less electric impedance micro-flow cytometry device for rapid label-free cell classification and viability testing

RSC - Anal. Methods latest articles - Thu, 02/09/2017 - 08:53

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C6AY03326A, PaperXinwu Xie, Zhen Cheng, Youchun Xu, Ran Liu, Qi Li, Jing Cheng
A sheath-less PDMS microfluidic IFC device with a simple structure was constructed, with a good performance in single-cell detection. The electrical conductance and susceptance were used to differentiate the beads/cells.
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Performance of Surface Renewable pH Electrodes based on RuO2-Graphite-Epoxy Composites

RSC - Anal. Methods latest articles - Wed, 02/08/2017 - 05:44
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY02950G, PaperShanluo Huang, Yan Jin, Ziqi Su, Qing-Hui Jin, Jianlong Zhao
In this work, surface renewable pH electrodes comprising RuO2-Graphite-Epoxy composites were developed. Three electrode types with different composite ratios were fabricated and their performance was investigated in detail by the...
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High-throughput analysis of endogenous fruit glycosyl hydrolases using a novel chromogenic hydrogel substrate assay

RSC - Anal. Methods latest articles - Mon, 02/06/2017 - 06:24
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03431D, CommunicationJulia Schuckel, Stjepan K Kracun, Thomas Frederik Lausen, William George Tycho Willats, Bodil Jorgensen
A broad range of enzyme activities can be found in a wide range of different fruits, vegetables and fruiting bodies but there is a lack of methods where many samples...
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