Analytical Chemistry News

Simultaneous Determination of Glyoxal, Methylglyoxal and Diacetyl in Beverages Using Vortex-Assisted Liquid-Liquid Microextraction Coupled with HPLC- DAD

RSC - Anal. Methods latest articles - Tue, 03/28/2017 - 05:35
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00180K, PaperTing-Ting Feng, Xian-Bing Xu, ming du, Mingqian Tan, Lei Qin, Bei-Wei Zhu
The detection of [small alpha]-dicarbonyl compounds including glyoxal (GO), methylglyoxal (MGO) and diacetyl (DA) level in beverages could effectively evaluate the degree of sugar degradation. In this study, a rapid and...
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Amino-functionalized graphene oxide/neutral alumina nanocomposite based solid-phase extraction coupled with ion chromatography-mass spectrometry for the determination of trace haloacetic acids in drinking water

RSC - Anal. Methods latest articles - Fri, 03/24/2017 - 10:52
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00583K, PaperZhixiong Zhong, Gongke Li, Yijuan Shao, Binghui Zhu, Zhe Liu, Jianchao Deng, Jingtian Mo
An efficient solid-phase extraction strategy was developed for the extraction and enrichment of ten haloacetic acids from drinking water. Amino-functionalized graphene oxide nanocomposite was synthesized and used as a sorbent....
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Determination of Fragrance Ingredients in Fish by Ultrasound-Assisted Extraction Followed by Purge & Trap

RSC - Anal. Methods latest articles - Thu, 03/23/2017 - 05:41
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00017K, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Chang-Er Long Chen, Karin Lofstrand, Margaretha Adolfsson-Erici, Matthew MacLeod
Fragrance materials are widely used in household and personal care products in applications that can lead to emissions to the aquatic environment. Assessing the potential for fragrance materials to bioaccumulate...
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Sensitive Validated Voltammetric Determination of Apixaban Using Multiwalled Carbon nanotubes Modified Carbon Paste Electrode: Application To Drug Product And Biological sample.

RSC - Anal. Methods latest articles - Thu, 03/23/2017 - 04:41
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00244K, PaperMohamed Rizk, Maha Sultan, Elham Taha, Ali Kamal Attia, youmna mosaad Abduallah
Sensitive, accurate and precise voltammetric method was developed and validated for determination of a selective factor Xa inhibitor Apixaban in drug substance using multi-walled carbon nanotubes modified carbon paste electrode...
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A diagnostic test for cocaine and benzoylecgonine in urine and oral fluid using portable mass spectrometry

RSC - Anal. Methods latest articles - Wed, 03/22/2017 - 11:35

Anal. Methods, 2017, 9,1839-1847
DOI: 10.1039/C6AY02006B, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Mahado Ismail, Mark Baumert, Derek Stevenson, John Watts, Roger Webb, Catia Costa, Fiona Robinson, Melanie Bailey
Surface mass spectrometry methods can be difficult to use effectively with low cost, portable mass spectrometers.
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Improved assessment of accuracy and performance indicators in paper-based ELISA

RSC - Anal. Methods latest articles - Wed, 03/22/2017 - 09:35
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00505A, PaperThiago Mazzu-Nascimento, Giorgio Gianini Morbioli, Luis Aparecido Milan, Diego Furtado Silva, Fabiana Cristina Donofrio, Carlos Alberto Mestriner, Emanuel Carrilho
Paper-based devices are an excellent match for low-cost Point-of-Care Testing (POCT) tools. Their user-friendliness, portability, and short time of analysis, coupled with easiness for local manufacture make these devices the...
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Bioluminescent detection of tick-borne encephalitis virus in native ticks

RSC - Anal. Methods latest articles - Wed, 03/22/2017 - 07:35
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00535K, PaperAlexander N Kudryavtsev, Ludmila P Burakova, Ludmila Frank
The one-step bioluminescent immunoassay of tick-borne encephalitis virus (TBEV) in natural ticks based on hybrid protein 14D5а-Rm7 was developed. Recombinant Ca2+-dependent coelenterazine-binding protein was shown to be a more convenient...
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Trans fatty acid determination by capillary zone electrophoresis: the art state and applications

RSC - Anal. Methods latest articles - Wed, 03/22/2017 - 07:35
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00193B, Critical ReviewTatiane Lima Amorim Prado, Marcone Augusto Leal de Oliveira
A review taking into account the literature reports covering alternative methods for trans fatty acid (TFA) determination, expressed in elaidic acid (EA), using capillary zone electrophoresis is presented. The manuscript...
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An advanced conjugation strategy for the preparation of quantum dot-antibody immunoprobes

RSC - Anal. Methods latest articles - Wed, 03/22/2017 - 05:34

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C6AY03322A, PaperVeronika Dvorakova, Michaela Cadkova, Vladimira Datinska, Karel Kleparnik, Frantisek Foret, Zuzana Bilkova, Lucie Korecka
An advanced site-specific conjugation strategy for the preparation of quantum dot-based antibody probes applicable in various immunoassays from fluorescence to electrochemical biosensors is described.
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Magnetic iron oxide nanoparticles for the collection and direct measurement of adsorbed alpha-emitting radionuclides from environmental waters by liquid scintillation analysis

RSC - Anal. Methods latest articles - Tue, 03/21/2017 - 05:26
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00247E, PaperMatthew J O'Hara, R Shane Addleman
Radioactive contamination, be it from accidental or intentional release, can create an urgent need to assess water and food supplies, the environment, and monitor human health. In the event of...
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Determination of 43 prohibited glucocorticoids in cosmetic products using a simultaneous LC-MS/MS method

RSC - Anal. Methods latest articles - Tue, 03/21/2017 - 05:26
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03065C, PaperNam Sook Kim, Geum Joo Yoo, Jihyune Lee, Hyung-Jun Park, Sooyeul Cho, Dong Woo Shin, Younglim Kim, Sun Young Baek
Recently, prohibited glucocorticoids (GCs) have been detected in commercial cosmetic products; they have been illegally added for enhancing certain pharmacological efficacy and for making illegal profits. Therefore, the health of...
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Development of analytical methods for the determination of copper and manganese in infant formula using high resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysis

RSC - Anal. Methods latest articles - Tue, 03/21/2017 - 05:26
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03332F, PaperRaimundo Rafael Gamela, Alvaro Tavares Duarte, Eliana Galland Barrera, Bernhard Welz, Morgana Bazzan Dessuy, Marcia M. Silva, Maria Goreti Rodrigues Vale
Two fast, simple and reliable methods for the determination of Cu and Mn in infant formula composed of different types of raw materials (rice, oats, bovine milk and soybean) were...
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An EC-QCL based N2O sensor at 5.2 [small mu ]m using cavity ring-down spectroscopy for environmental applications

RSC - Anal. Methods latest articles - Tue, 03/21/2017 - 05:26
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00482F, PaperGourab Dutta Banik, Suman Som, Abhijit Maity, Mithun Pal, Sanchi Maithani, Santanu Mandal, Manik Pradhan
Nitrous oxide (N2O) is an important anthropogenic emitted greenhouse gas in the atmosphere that can contribute to the ozone destruction. Considering its environmental importance, the real-time monitoring and molecule-specific detection...
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A comparison of colorimetric assays detecting hydrogen peroxide in leaf extracts

RSC - Anal. Methods latest articles - Mon, 03/20/2017 - 15:18
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00126F, Technical NoteAniko Matai, Eva Hideg
Hydrogen peroxide (H2O2) Hydrogen peroxide (H2O2) is a central molecule in plant stress responses as potential oxidizing agent or signal molecule, depending on its localization and cellular concentrations. The present...
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Simultaneous combination of MS2 workflows for pesticides multiresidue analysis with LC-QOrbitrap

RSC - Anal. Methods latest articles - Mon, 03/20/2017 - 11:15
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00480J, PaperLukasz Rajski, Maria del Mar Gomez-Ramos, Amadeo R. Rodriguez Fernandez-Alba
This paper describes an evaluation of full scan MS analysis combined with target and non-target MS2 acquisition in combination with targeted processing for pesticides in fruit and vegetables. Two databases...
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Microfluidic Biochip and Integrated Diffractive Optics for Bacteria Growth Control and Monitoring

RSC - Anal. Methods latest articles - Mon, 03/20/2017 - 08:14
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03311C, CommunicationCynthia Goh , Vitali Borisenko
We present a simple and inexpensive method for enabling bacterial cell capture in a 2D array of traps, such that their growth can be monitored under controlled dynamic environments through...
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Fluorescent Detection of Dopamine based on nitrogen-doped graphene quantum dots and visible paper based test strips

RSC - Anal. Methods latest articles - Mon, 03/20/2017 - 06:13
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00028F, PaperXueqian Chen, Na Zheng, shufan Chen, Qiang Ma
Dopamine (DA) was sensitively detected by a label-free fluorescence method using nitrogen-doped graphene quantum dots (N-GQDs) as effective probes. The detection of DA was also performed on the N-GQDs immersed...
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Pencil graphite as an elegant electrochemical sensor for separation-free and simultaneous sensing of hypoxanthine, xanthine and uric acid in fish samples

RSC - Anal. Methods latest articles - Mon, 03/20/2017 - 06:13
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00445A, PaperNandimalla Vishnu, Mansi Gandhi, Desigan Rajagopal, Annamalai Senthil Kumar
Analyzing catabolism of the fish cycle, wherein, hypoxanthine (Hx), xanthine (X) as intermediates and uric acid (UA) as the end product formed, provides vital information about freshness of fish. Biosensors...
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Outstanding reviewers for Analytical Methods in 2016

RSC - Anal. Methods latest articles - Fri, 03/17/2017 - 08:39

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY90040F, Editorial
We would like to take this opportunity to highlight the Outstanding Reviewers for Analytical Methods in 2016, as selected by the editorial team for their significant contribution to the journal.
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Discrete wavelet assisted correlation optimised warping of chromatograms: optimizing the computational time for correcting the drifts in peak positions

RSC - Anal. Methods latest articles - Fri, 03/17/2017 - 06:37

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY00268H, PaperKeshav Kumar
Discrete wavelet transform (DWT) assisted correlation optimised warping (COW) is shown to be a fast and efficient approach for correcting the retention time drifts of the chromatograms.
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