Analytical Chemistry News

A novel "turn-on" fluorescence sensor for high selectively detecting Al(III) in aqueous solution based on simple electrochemical synthesized carbon dots

RSC - Anal. Methods latest articles - Tue, 06/06/2017 - 08:37
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01137G, PaperXu-Cheng Fu, Jiangzhou jin, Ju Wu, Juncheng Jin, chenggen xie
In this paper, a simple and sensitive "turn on" fluorescent sensor for detecting Al3+ ion in aqueous solution is developed based on carbon dots (C-dots) obtained by one-step electrolysis of...
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News from the Analytical Methods editors

RSC - Anal. Methods latest articles - Tue, 06/06/2017 - 04:36

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY90061A, Editorial
An update from the new Analytical Methods Editor-in-Chief, Scott Martin.
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Chemical Profiling and Classification of Cannabis through Electrospray ionization coupled to Fourier Transform Ion Cyclotron Resonance Mass Spectrometry and Chemometrics

RSC - Anal. Methods latest articles - Mon, 06/05/2017 - 09:27
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01294B, PaperWanderson Romao, Bruna Tassi Borille, Rafael S Ortiz, Kristiane de Cassia Mariotti, Gabriela Vanini, Lilian V. Tose, Paulo R Filgueiras, Marcelo Caetano Alexandre Marcelo, Marco Flores Ferrao, Michel Anzanello, Renata Limberger
Cannabis sativa is chemically characterized as terpenophenolic structures, named cannabinoids, which are exclusively found in this plant. In Brazil, the international trafficking of small amounts of cannabis seeds in transport...
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Probing the Binding Mechanism of Polybrominated Diphenyl Ethers with Transthretin by Multi-Spectroscopic and Molecular Dynamics Simulations

RSC - Anal. Methods latest articles - Mon, 06/05/2017 - 07:26
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00838D, PaperJie Xu, Zhongsheng Yi, Yu Chen Wei, Wu Yang, Lu Lu Yang, Jinfang Nie
Physical and chemical properties of polybrominated diphenyl ethers (PBDEs) are important for modeling their transport. The primary objective of this study is to evaluate the interaction of transthyretin (TTR) with...
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A New "On-Off" Fluorescent Probe for Selective Detection of Copper Ion in Living Cells

RSC - Anal. Methods latest articles - Mon, 06/05/2017 - 07:26
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01097D, PaperMingjie Wei, Youyu Zhang, Haitao Li, Shouzhuo Yao
A new "on-off" fluorescent probe 4',5'-bis((bis(thiophen-2-ylmethyl)amino)methyl)-2',7'-dichloro-3',6'-dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one (probe F) for selective detection of copper ion was synthesized and characterized. The favorable features of the proposed probe included good selectivity, high sensitivity,...
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Construction of a novel ratiometric near infrared fluorescent probe for SO2 derivatives and its application for biological imaging

RSC - Anal. Methods latest articles - Mon, 06/05/2017 - 07:26
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01113J, PaperHuiming Shang, Keyin Liu, Weiying Lin
Sulfur dioxide (SO2) is one of the most important reactive sulfur species widely spread in living organism. SO2 is recognized as an important regulatory factor that can modulate the cardiovascular...
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Isotope dilution quantification of 5-hydroxymethyl-2-furaldehyde in beverages using vortex-assisted liquid-liquid microextraction coupled with ESI-HPLC-MS/MS

RSC - Anal. Methods latest articles - Wed, 05/31/2017 - 08:27
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00927E, PaperTing-Ting Feng, xu liang, jianhai wu, Lei Qin, Mingqian Tan, Bei-Wei Zhu, Xian-Bing Xu
The vortex-assisted liquid-liquid microextraction (VALLME) was a fast and simple pretreatment method, which was applied for the clean-up of beverages containing caramel color. A reversed-phase C18 column (50mm [times] 2.5mm,...
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Click Chemistry-based Aptasensor for High Sensitive Electrochemical Detection of Thrombin

RSC - Anal. Methods latest articles - Wed, 05/31/2017 - 08:27
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00861A, PaperQianrui Liu, Qiong Hu, Lianzhi Li, Jinming Kong, Xueji Zhang
In this work, we reported a click chemistry-based electrochemical aptasensor for the simple and fast detection of thrombin. Briefly, the thiol-terminated aptamer1 (Apt1) was first self-assembled on the gold electrode...
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Ambient ionization mass spectrometry: real-time, proximal sample processing and ionization

RSC - Anal. Methods latest articles - Wed, 05/31/2017 - 06:26

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY00948H, MinireviewR. Javanshad, A. R. Venter
A review of ambient ionization mass spectrometry highlighting the central role of sample preparation immediate to and during sample analysis.
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Chemical Reduced Graphene Oxide-Au Nanocages Composite for Electrochemical Detection of Dopamine and Uric Acid

RSC - Anal. Methods latest articles - Tue, 05/30/2017 - 08:18
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00677B, PaperWeihao Li, Lian Ma, Bingxue Wu, Yue Zhang, Zhuang Li
Chemical reduced graphene oxide-Au nanocages (CRGO-AuNCs) composite was synthesized by electrostatic assembly of poly-diallyldimethylammonium chloride (PDDA) modified CRGO and mercaptosuccinic acid (MSA) modified Au nanocages. The product was characterized by...
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Immunoaffinity Nanogold Coupled with Direct Analysis in Real Time (DART) Mass Spectrometry for Analytical Toxicology

RSC - Anal. Methods latest articles - Tue, 05/30/2017 - 06:14
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00922D, CommunicationKenyon McLane Evans-Nguyen, Tiffanie L Hargraves, Amanda Quinto
A rapid, definitive trace drug identification technique using nanogold surfaces with mass spectrometry was developed. High-surface area nanogold was deposited on gold wires and functionalized with antibodies. Effective drug capture...
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Development and validation of an LC-MS/MS method for simultaneous quantification of hesperidin and hesperetin in rat plasma for pharmacokinetic studies

RSC - Anal. Methods latest articles - Tue, 05/30/2017 - 05:14

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY00051K, PaperJr-Ting Lee, Li-Heng Pao, Chang-Da Hsieh, Pei-Wei Huang, Oliver Yoa-Pu Hu
A simple and sensitive method for the determination of hesperidin and hesperetin was necessary for a pharmacokinetic (PK) study in Wistar rats.
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Potential of electrospray ionization mass spectrometry (ESI-MS), using direct infusion, to quantify fatty acid methyl esters (FAME) in biodiesel

RSC - Anal. Methods latest articles - Tue, 05/30/2017 - 05:14
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00644F, PaperRodrigo Vivarelli Leal, Gabriel F. Sarmanho, Luiz Leal, Bruno Carius Garrido, Lucas Junqueira Carvalho, Eliane Cristina Pires Rego, Peter R. Seidl
Biodiesel is a very important biofuel obtained from vegetable oil or animal fat by a chemical reaction know as transesterification. Its product consists mainly of fatty acid methyl esters (FAME)....
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Electrolyte-assisted microemulsion breaking in vortex-agitated solidified floating organic drop microextraction for preconcentration and analysis of Sudan dyes in chili products

RSC - Anal. Methods latest articles - Tue, 05/30/2017 - 04:11
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01133D, PaperPhitchan Sricharoen, Nunticha Limchoowong, Thitiya Sripakdee, Prawit Nuengmatcha, Saksit Chanthai
For the extraction and determination of trace amounts of Sudan I-IV dyes in chili product samples, a simple and efficient liquid phase microextraction technique was developed using electrolyte-assisted microemulsion breaking...
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Use of Fourier transform near-infrared spectroscopy combined with relevance vector machine to discriminate Tetrastigma hemsleyanum (Sanyeqing) from other related species

RSC - Anal. Methods latest articles - Mon, 05/29/2017 - 07:02
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00936D, Papercaili Fu, Ying Li, Wu Wang, Bin Qiu, Zhenyu Lin, Shaoyun Wang, Suhua Wang, Abdullah M. Asiri, Khalid A. Alamry
Few studies have been carried out about the discrimination of precious Tetrastigma hemsleyanum, also known as Sanyeqing in China. Fourier transform near-infrared (FT-NIR) spectroscopy coupled with chemometric class-modelling techniques to rapidly...
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Forensic discrimination between authentic and counterfeit perfumes using paper spray mass spectrometry and multivariate supervised classification

RSC - Anal. Methods latest articles - Mon, 05/29/2017 - 07:02
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01295K, PaperJanaina Aparecida Reis Teodoro, Hebert Vinicius Pereira, Deleon N Correa, Marcelo Martins de Sena, Evandro Piccin, Rodinei Augusti
Perfumes are cosmetic products with high added value and worldwide consumption, which make them a potential target for counterfeiting. A novel, simple and rapid method was developed for differentiation of...
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Synthesis of highly luminescent Cu/Ag bimetal nanoclusters and their application in a temperature sensor

RSC - Anal. Methods latest articles - Mon, 05/29/2017 - 07:02
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01164D, PaperBingyan Han, Xufen Hou, Rongchao Xiang, Gaohong He
Bimetal nanoclusters (BNCs) have attracted plenty of attention due to their cooperative properties in electronic, optical, and catalytic. In this paper, the highly luminescent Cu/Ag BNCs were prepared based on...
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Enantiomeric separation of tryptophan by open-tubular microchip capillary electrophoresis using polydopamine/gold nanoparticles conjugated DNA as stationary phase

RSC - Anal. Methods latest articles - Mon, 05/29/2017 - 06:02
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01035D, PaperYan Zhang, Yi Zhang, Wujuan Chen, Yating Zhang, Luqi Zhu, Pingang He, Qingjiang Wang
We reported the use of polydopamine/Au nanoparticles/DNA (PDA/Au NPs/DNA) as a stationary phase for the separation of tryptophan enantiomers by microchip capillary electrophoresis (MCE). The stationary phase was formed by...
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Optimisation of an extraction/leaching procedure for the characterisation and quantification of titanium dioxide (TiO2) nanoparticles in the aquatic environment using SdFFF-ICP-MS and SEM EDX analysis.

RSC - Anal. Methods latest articles - Mon, 05/29/2017 - 06:02
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00635G, PaperFlorian Dutschke, Johanna Irrgeher, Daniel Profrock
The quantitative recovery of nanoparticles from environmental samples represents a critical step during the implementation of routine analytical monitoring methods for the reliable quantitative determination of nanomaterials released into the...
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Imaging Acetaldehyde Formation During Ethanol Metabolism in Living Cells using a Hydrazinyl Naphthalimide Fluorescent Probe

RSC - Anal. Methods latest articles - Mon, 05/29/2017 - 06:02
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01238A, CommunicationAlexander Lippert, Audrey G. Reeves, Manasa Subbarao
The metabolism of ethanol to acetaldehyde has been visualized in living lung epithelial cells using a hydrazinyl naphthalimide fluorescent probe. Utilizing a condensation reaction between carbonyls and a hydrazine moeity,...
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