Analytical Chemistry News

A comparison of structural-functional equation models to identify fatty acids on three common gas chromatography columns

RSC - Anal. Methods latest articles - Tue, 12/05/2017 - 04:09

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY02456H, PaperA. T. L. Wotherspoon, K. L. Reeves, J. Crawford
Reported herein is a series of new structural-functional relationship equations which provide relevant structural information of unknown fatty acid methyl esters (double-bonds, chain-length, and omega-bond position) based upon temperature induced shifts in equivalent chain length's (ECLs).
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Construction of novel nanocomposite ZnO@CoFe2O4 microspheres grown on nickel foam for high performance electrochemical supercapacitors

RSC - Anal. Methods latest articles - Tue, 12/05/2017 - 00:49
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02176C, PaperAraveeti Eswar Reddy, Tarugu Anitha, Chandu V.V.M Gopi, Srinu Srinivasa Rao, Bandari Naresh, Heeje Kim
Novel ZnO@CoFe2O4 and CoFe2O4 nanocomposites have potential applications on account of their high surface area and electrical properties. These two nanocomposite electrodes on nickel foam were developed for high performance...
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MoS2-based sensor for the detection of miRNA in serum samples related with breast cancer

RSC - Anal. Methods latest articles - Mon, 12/04/2017 - 19:38
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02329D, PaperBingjie Cai, Shuang Guo, Yan Li
Early diagnosis of cancer is critical in treatment of the patients, which can reduce the risk of death. Breast cancer is one of the most common malignant tumors in women,...
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Non-enzymatic glucose sensor based on the CuS nanoflakes-reduced graphene oxide nanocomposite

RSC - Anal. Methods latest articles - Mon, 12/04/2017 - 04:25
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02290E, PaperXiaoyi Yan, Yue Gu, Cong Li, Bo Zheng, Yaru Li, Tingting Zhang, Zhiquan Zhang, Ming Yang
In this work, Copper sulfide nanoflakes-reduced graphene oxide (rGO/CuSNFs) nanocomposite has been successfully synthesized via one-pot hydrothermal treatment, where the reduction of GO and in situ generation of CuS nanoflakes...
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A New Wipe-Sampling Instrument for Measuring the Collection Efficiency of Trace Explosives Residues

RSC - Anal. Methods latest articles - Sun, 12/03/2017 - 22:20
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02694C, PaperElizabeth L Robinson, Edward Sisco, Matthew Edward Staymates, Jeffrey Lawrence
Trace explosives detection, a crucial component of many security screening environments, commonly employs wipe-sampling. Since collection of an explosive residue is necessary for detection, it is important to have a...
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Solid phase extraction of -tocopherol and other physiologically-active components from sunflower oil using rationally-designed polymers

RSC - Anal. Methods latest articles - Sun, 12/03/2017 - 22:20
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02726E, PaperEman Alghamdi, Michael J Whitcombe, Sergey A Piletsky, Elena Piletska
A rationally-designed polymer (RDP) capable of recognition of -tocopherol and other minor components in sunflower oil has been produced. It is known that sunflower oil is a source of various...
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Dengue Serotyping with Label-Free DNA Sensor

RSC - Anal. Methods latest articles - Thu, 11/30/2017 - 05:16
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02131C, PaperSoo Khim Chan, Yee Siew Choong, David Perera, Theam Soon Lim
Dengue virus (DENV) is one of the most important mosquito-borne viral diseases in tropical and subtropical regions. Development of severe forms of dengue viral infection such as dengue fever (DF)...
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Provenance classification of nephrite jades using multivariate LIBS; a comparative study

RSC - Anal. Methods latest articles - Wed, 11/29/2017 - 09:03
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02643A, PaperJianlong Yu, Zongyu Hou, Sahar Sheta, Jian Dong, Wen Han, Taijin Lu, Zhe Wang
Provenance classification of nephrite jades is important since the unit price of jade changes drastically with its geological origin. In the present work, a detailed comparison between commonly applied multivariate...
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Plasmonic Nanograting Enhanced Fluorescence for Protein Microarray Analysis of Carcinoembryonic antigen (CEA)

RSC - Anal. Methods latest articles - Wed, 11/29/2017 - 04:58
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02232H, PaperChang Liu, Fanling Meng, Baogang Wang, Lei Zhang, Xiaoqiang Cui
The low sensitivity of protein microarrays has limited the wide application in diagnostics and high-throughput proteomic analysis. We present a first exploration of the protein microarray analysis on the nanostructured...
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Analysis of natural and synthetic folates in pharmaceuticals and foods: a review

RSC - Anal. Methods latest articles - Tue, 11/28/2017 - 06:26
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02501G, MinireviewShuo Yin, Yi Yang, Yongxin Li, Chengjun Sun
Folate (vitamin B9) plays an important role in cell division and tissue growth by participating in the amino acid metabolism and nucleotide metabolism. Folate deficiency among pregnant women and children...
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Paper Spray Mass Spectrometry for High-Throughput Quantification of Nicotine and Cotinine

RSC - Anal. Methods latest articles - Tue, 11/28/2017 - 04:23
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02204B, PaperJames E. Keating, John T. Minges, Scott H Randell, Gary L Glish
The rapid release of new tobacco products requires high-throughput quantitative methods to support tobacco research. Sample preparation for LC-MS and GC-MS is time consuming and limits throughput. Paper spray tandem...
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DES-based microwave hydrodistillation coupled with GC-MS for analysis of essential oil from black pepper (Piper nigrum) and white pepper

RSC - Anal. Methods latest articles - Mon, 11/27/2017 - 06:42

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY02072D, PaperGuo-Wei Yu, Qiang Cheng, Jing Nie, Peng Wang, Xia-Jun Wang, Zu-Guang Li, Maw-Rong Lee
Deep eutectic solvents (DESs) have been gaining much attention in recent years due to their various novel properties.
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Optimizing the process of reference selection for correlation optimised warping (COW) and interval correlation shifting (icoshift) analysis: Automatizing the chromatographic alignment procedure

RSC - Anal. Methods latest articles - Mon, 11/27/2017 - 05:42
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02340E, PaperKeshav Kumar
In order to ensure that results of chromatographic data analysis workflow are well within the chemical and biological premises same chromatographic peak must be present at the same position for...
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Validation of a lateral flow immunoassay for the for the rapid determination of aflatoxins in maize by solvent free extraction

RSC - Anal. Methods latest articles - Mon, 11/27/2017 - 04:34
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02249B, PaperVeronica Lattanzio, Natascia Guarducci, Stephen Powers, biancamaria ciasca, Michelangelo Pascale, Christoph von Holst
Analytical performances of a lateral flow immunoassay (AFLA-V AQUATM, Vicam a Waters Business) for the determination of aflatoxins in maize, were evaluated according to Commission Regulation (EU) No 519/2014. This...
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Development of molecularly imprinted photonic polymer for sensing of sulfonamides in egg white

RSC - Anal. Methods latest articles - Mon, 11/27/2017 - 04:34
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02283B, PaperYing-Hui Zhang, Hui-Hui Ren, Li-Ping Yu
We developed a simple method based on molecularly imprinted photonic polymer (MIPP) for sensing of sulfonamides in egg white samples. The fabrication of MIPP mainly involved a photonic crystal template...
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Synthesis of water-soluble fluorescent carbon dots from Setcreasea purpurea boom and its application for Br2 detection

RSC - Anal. Methods latest articles - Mon, 11/27/2017 - 03:31
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02631E, PaperHaoying Zhai, Baozhan Zheng, Feng Yang, Meina Wang, Dan Xiao
Fluorescent carbon dots (CDs) were successfully synthesized by pyrolysis treatment of Setcreasea purpurea boom, providing a simple and convenient method for the preparation of CDs without using toxic or expensive...
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Micro sensor based on hypha-templated coaxial microfibers

RSC - Anal. Methods latest articles - Fri, 11/24/2017 - 10:02
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02318A, PaperZhihua Li, Shi Jiyong, Xiaowei Huang, Xiaobo Zou, Xuetao Hu, Xucheng Zhou, Haroon Elrasheid Tahir
Biological templates show great potential in the fabrication of advanced materials since they are green, renewable and easy to obtain. Hypha of Penicillium is demonstrated to be a versatile template...
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External reference 1H qNMR method (PULCON) for characterization of high purity cocaine seizures

RSC - Anal. Methods latest articles - Fri, 11/24/2017 - 06:55
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02343J, PaperLuiz Eduardo Celino Benedito, Adriano Otavio Maldaner, Aline L. Oliveira
An external reference 1H qNMR method is developed and validated for the determination of three major alkaloids - cocaine, cis-cinnamoylcocaine and trans-cinnamoylcocaine - in high purity cocaine seizures. The method...
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An ultrasensitive electrochemiluminescence D-alanine biosensor based on the synergetic catalysis of hemin functionalized composite and gold-platinum nanowires

RSC - Anal. Methods latest articles - Fri, 11/24/2017 - 04:55
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02483E, PaperXia Lin, Shu Zhu, Qiao Xia, Jiao Ma, Yingzi Fu
An ultrasensitive and stereo-selective electrochemiluminescence (ECL) biosensor based on ECL signal amplification of luminol by the synergetic catalysis of hemin functionalized composite and gold-platinum nanowires (Au-PtNWs) has been designed for...
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Application of a glassy carbon electrode modified with carbon black nanoparticles for highly sensitive voltammetric determination of quetiapine

RSC - Anal. Methods latest articles - Thu, 11/23/2017 - 06:21

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY02140B, PaperM. Lawrywianiec, J. Smajdor, B. Paczosa-Bator, R. Piech
A novel highly sensitive voltammetric quetiapine fumarate (QF) sensor based on a glassy carbon electrode (GCE) modified with carbon black nanoparticles (CB) was successfully developed.
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