Analytical Chemistry News

A novel intramolecular cyclization-induced fluorescent "turn-on" probe for detection of Pd2+ based on Tsuji-Trost reaction

RSC - Anal. Methods latest articles - Wed, 06/13/2018 - 23:10
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00965A, PaperBaolong Huo, Man Du, Aijun Gong, Mengwen Li, Leqiu Fang, Ao Shen, Yaru Lai, Xue Bai, yunxu yang
Palladium, as a toxic heavy metal, poses a great threat to the environment and human health. It is essential to achieve the purpose of detecting trace amounts of palladium. In...
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Direct online quantitation of 2-methyl-3-methoxy-4-phenyl butanoic acid for total microcystin analysis by condensed phase membrane introduction tandem mass spectrometry

RSC - Anal. Methods latest articles - Wed, 06/13/2018 - 16:02
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00516H, CommunicationKyle Duncan, Daniel G. Beach, Elliott J. Wright, Todd Barsby, Chris G. Gill, Erik T. Krogh
Microcystins (MCs) are a potent class of hepatotoxins produced by several species of cyanobacteria, which have been responsible for illness and death in livestock and humans. Rapid detection and quantitation...
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Steroid Inhibition of Erythrocyte-derived ATP Reduces Endothelial Cell Production of Nitric Oxide in a 3D-printed Fluidic Model

RSC - Anal. Methods latest articles - Wed, 06/13/2018 - 13:00
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00870A, PaperTiffany Janes, Dana Spence
Multiple Sclerosis (MS) is a disease of the central nervous system affecting over 2.5 million people worldwide. MS is characterized by blood brain barrier (BBB) damage and demyelination of axons,...
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Magnetic surface molecularly imprinted polymeric microspheres using gallic acid as segment template for excellent recognition of ester-catechins

RSC - Anal. Methods latest articles - Wed, 06/13/2018 - 06:52
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00903A, PaperBin Wang, Huiyun Deng, Mao Wu, shu Xiang, qiang Ma, Shuyun Shi, Lianwu Xie, Yaping Guo
Magnetic surface molecularly imprinted polymeric microspheres (MMIPs) were prepared by using gallic acid (GA) as segment template for solid extracting ester-catechins as a whole from complex samples. The MMIPs were...
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Rapid determination of histamine in fish by thin-layer chromatography-image analysis method using diazotized visualization reagent prepared with p-nitroaniline

RSC - Anal. Methods latest articles - Wed, 06/13/2018 - 05:50
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00336J, PaperHui Yu, Daina Zhuang, Xingjuan Hu, Shuang Zhang, Zhi-yong HE, Maomao Zeng, Xubo Fang, J. Chen, Xiaoe Chen
A novel analytical method for rapid determination of histamine in fish consists of methanol extraction, manual spotting, thin-layer chromatograph (TLC) for less than 15 min, visualization by diazotized p-nitroaniline reagent,...
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Simultaneous determination of aflatoxin B1 and zearalenone by magnetic nanoparticles filled amino-modified multi-walled carbon nanotubes

RSC - Anal. Methods latest articles - Wed, 06/13/2018 - 04:49
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00815A, PaperWen-kui Li, Haixia Zhang, Yan-Ping Shi
A novel magnetic solid-phase extraction (MSPE) coupled with high performance liquid chromatography (HPLC) method was explored for aflatoxin B1 (AFB1) and zearalenone (ZON) simultaneous determination. The method was based on...
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Study of the occurrence of tropane alkaloids in animal feed using LC-HRMS

RSC - Anal. Methods latest articles - Wed, 06/13/2018 - 02:49
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00941D, PaperAna Romera-Torres, Roberto Romero-Gonzalez, Jose Luis Martinez Vidal, Antonia Garrido Frenich
The consumption of animal products is rapidly increasing and, therefore, the use of feedstuffs in farms is demanding in developing countries. Feed cereals represent more than 48% of total feed...
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Boron-doped diamond electrode: a modification free platform for sensitive square-wave voltammetric determination of indapamide hydrochloride

RSC - Anal. Methods latest articles - Tue, 06/12/2018 - 15:39
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01288A, PaperCarlos Alberto Rossi Salamanca-Neto, Fabiana Ayumi Yoshida, Elen Romao Sartori, Jaqueline Tobias Moraes
A boron-doped diamond electrode (BDDE) was employed in the indapamide hydrochloride (IND) determination. IND presented an irreversible and diffusion-controlled oxidation peak at 0.61 V in 0.01 mol L-1 H2SO4 by...
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Sodium polytungstate as gravity separating fluid for polymeric blasting media evaluation

RSC - Anal. Methods latest articles - Tue, 06/12/2018 - 11:37

Anal. Methods, 2018, Advance Article
DOI: 10.1039/C8AY00946E, PaperPatric Helbig, Cheryll D. Pitt
Quality assessment of Plastic Blast Media (PBM) in order to determine heavy and light particulate contamination has been carried out traditionally using gravity separation in a medium prepared using 1,1,2-trifluorotrichloroethane (TFTCE) as high density compound.
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Mercapto-modified magnesium silicate micro-particles for efficient extraction and preconcentration of mercury ions from estuarine waters

RSC - Anal. Methods latest articles - Tue, 06/12/2018 - 08:36
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00927A, PaperMorteza Sajedi-fard, Kamal Ghanemi, Yadollah Nikpour
This article presents a new and robust adsorbent for extraction and preconcentration of Hg ions from estuary samples based on modification of magnesium silicate (MgSi) with 2-mercaptobenzoxazole (MBO). The properties,...
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Ochratoxin A Enhanced Detection of Cytochrome c with Aptamers-Based Microcantilever Sensor

RSC - Anal. Methods latest articles - Tue, 06/12/2018 - 05:32
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00788H, CommunicationXuejuan Chen, Chen Li, Yangang Pan, Bailin Zhang
Cytochrome c is a globular heme protein which is known to adopt a variety of alternative conformations in addition to its natural structure. In this paper, we developed a microcantilever...
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Miniaturized, High-Throughput and Green Determination of the Saponification Value of Edible Oils Using Thermal Infrared Enthalpimetry

RSC - Anal. Methods latest articles - Mon, 06/11/2018 - 09:01
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00597D, PaperFlavia M Dalla Nora, Alessandra Stangherlin Oliveira, Bruna Nichelle Lucas, Daniele Freitas Ferreira, Fabio Andrei Duarte, Alexandre Jose Cichoski, Renius Oliveira Mello, Juliano Smanioto Smanioto Barin
Saponification value (SV) is one of the parameters used to evaluate the quality of edible oils and it is determined by titration after oil heating with the KOH solution. This...
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Ultra-trace determination of sodium fluoroacetate (1080) as monofluoroacetate in milk and milk powder by GC-MS/MS and LC-MS/MS

RSC - Anal. Methods latest articles - Mon, 06/11/2018 - 04:00
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00767E, PaperYiu-Tung Wong, Wing-Ki Law, Shirley Sau-Ling Lai, Siu-Pan Wong, Kong-Chi Lau, Clare Ho
A sensitive analytical method based on derivatization with 3-nitroaniline is established for the trace determination of sodium fluoroacetate (1080) in milk and milk powders. The method reported here utilizes protein...
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Gold nanocone array directly grown on nickel foam for improved SERS detection of aromatic dye

RSC - Anal. Methods latest articles - Mon, 06/11/2018 - 04:00
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00840J, PaperFugang Xu, Huasheng Lai, Hui Xu
An efficient SERS substrate composed of gold nanocone array with abundant sharp tips directly grown on 3D porous Ni foam (AuNCA@Ni foam) was developed for sensitive detection of aromatic dye....
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Authentication and Adulteration Detection of Peanut Oils of Three Flavor Types Using Synchronous Fluorescence Spectroscopy

RSC - Anal. Methods latest articles - Mon, 06/11/2018 - 03:00
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00837J, PaperZongyao Huyan, Shaoxuan Ding, Xiaoli Liu, Xiuzhu Yu
The study was to propose a method to differentiate commercial peanut oils from various flavor types. Synchronous fluorescence spectroscopy (SyFS) associated with principal component analysis (PCA) and cluster analysis was...
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A novel amplified double-quenching aptasensor for cocaine detection based on split aptamer and silica nanoparticles

RSC - Anal. Methods latest articles - Mon, 06/11/2018 - 03:00
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00755A, PaperKhalil Abnous, Noor Mohammad Danesh, Mohammad Ramezani, Seyed Mohammad Taghdisi, Ahmad Sarreshtehdar Emrani
Herein, a sensitive and rapid fluorescent aptasensor was developed for detection of cocaine as an illicit drug, based on an amplification strategy using silica nanoparticles coated with streptavidin (SNPs), double-quenching...
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Correction: Correcting the effect of hematocrit in whole blood coagulation analysis on paper-based lateral flow device

RSC - Anal. Methods latest articles - Fri, 06/08/2018 - 05:26
Anal. Methods, 2018, Advance Article
DOI: 10.1039/C8AY90074D, Correction Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Hua Li, Daewoo Han, Giovanni M. Pauletti, Michael A. Hegener, Andrew J. Steckl
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Composite materials based on hybrid mesoporous solids for flow through determination of ultratrace levels of Cd(II)

RSC - Anal. Methods latest articles - Thu, 06/07/2018 - 16:11
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00879E, PaperYanina Minaberry, Jorge Stripeikis, Mabel Beatriz Tudino
In this work we present a solid phase extraction (SPE) flow through system coupled to graphite furnace atomic absorption spectrometry (GFAAS) for the determination of Cd(II) at ultratrace levels. The...
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Decreasing the Uncertainty of Peak Assignments for the Analysis of Synthetic Cathinones Using Multi-Dimensional Ultra-High Performance Liquid Chromatography

RSC - Anal. Methods latest articles - Thu, 06/07/2018 - 14:08
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00565F, PaperCecilia Ochoa, Peter Schoenmakers, Claude Mallet, Ira Saul Lurie
Chromatographic techniques which are commonly employed in forensic analysis utilize retention time as an identification parameter. Conventional one-dimensional chromatographic techniques such as gas and liquid chromatography inherently lack the separation...
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Controllable synthesis of cellulose benzoates for understanding of chiral recognition mechanism and fabrication of highly efficient chiral stationary phases

RSC - Anal. Methods latest articles - Thu, 06/07/2018 - 08:01

Anal. Methods, 2018, Advance Article
DOI: 10.1039/C8AY00162F, PaperLimin Chang, Jinming Zhang, Weiwei Chen, Mei Zhang, Chunchun Yin, Weiguo Tian, Zhu Luo, Weili Liu, Jiasong He, Jun Zhang
The core of enantioseparation is to combine the hydrophobic helical conformation of cellulose derivatives with weak non-enantioselective interactions.
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