Analytical Chemistry News

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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Multiplex Detection of Cardiac Biomarkers

RSC - Anal. Methods latest articles - Fri, 05/26/2017 - 08:29
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00521K, CommunicationTaisun Kim, Satish Balasaheb Nimse, Keum-Soo Song, Mukesh Digambar Sonawane
A method for multiplex detection of three cardiac markers cTnI, NT-proBNP, and cTnT specific to CVD is reported. Low SBR and high-specificity in the detection allowed to achieve limits of...
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A Simple and Practical Method for Determining Iodine Values of Oils and Fats by the FTIR Spectrometer with an Infrared Quartz Cuvette

RSC - Anal. Methods latest articles - Fri, 05/26/2017 - 08:29
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00727B, PaperZhen An, Xiuming Jiang, Guoqiang Xiang, Lu Fan, Lijun He, Wenjie Zhao
A rapid and practical method for determining the iodine value (IV) of edible oils or fats with the FTIR spectrometer combined a quartz cuvette was reported. The sample was diluted...
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Bispyrene/AgNPs-based ratiometric nanoprobe for supersensitive fluorescent and colorimetric sensing of etimicin

RSC - Anal. Methods latest articles - Fri, 05/26/2017 - 07:29
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00210F, PaperJiahui Li, Yi Xiao, Hongling Qin, Huizhen Shi, hongmei huang, Youyu Zhang, Xiaoxiao He, Kemin Wang
A new ratiometric nanosystem has been developed for selective and ultrasensitive detection of etimicin based on citrate-stabilized silver nanoparticles (AgNPs) and N,N'-bis-(1-pyrenecarboxaldehyde)-1,12-dodecanediamine (probe 1). Probe 1, a bispyrene Schiff base...
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An ultra-sensitive 2D electrochemical sensor based on PtNPs@Graphene/Nafion nanocomposite for determination of [small alpha]1-AR antagonist silodosin in human plasma

RSC - Anal. Methods latest articles - Fri, 05/26/2017 - 07:29
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00992E, PaperEngin Er, Huseyin Celikkan, Nevin Erk
This paper reports a platinum nanoparticles/graphene/nafion nanocomposite (PtNPs@GRP/NFN) as a novel and highly sensitive two-dimensional (2D) sensing nanoplatform for the electrochemical determination of silodosin (SLN). The electrochemical behavior of SLN...
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Differential ion mobility spectrometry with temperature programmable micromachined gas chromatography for the determination of bis(chloromethyl)ether

RSC - Anal. Methods latest articles - Fri, 05/26/2017 - 07:29

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY00653E, PaperJ. Luong, R. Gras, R. A. Shellie
A parts-per-million level screening technique for bis(chloromethyl)ether using micromachined differential ion mobility spectrometry combined with portable temperature programmable low thermal mass silicon micromachined gas chromatography is described.
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Enzymatic Mediated Assembly of Gold Nanoparticles for Ultrasensitive Colorimetric Detection of Hepatitis C Virus Antibody

RSC - Anal. Methods latest articles - Thu, 05/25/2017 - 09:20
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01086A, PaperYu-Hong Cheng, Hao Tang, Jian-Hui Jiang
Based on aggregation of gold nanoparticles (AuNPs) induced by acetylcholinesterase-catalyzed hydrolysis reaction, we have developed a novel highly sensitive enzymatic mediated assembly of AuNPs based colorimetric method for the ultrasensitive...
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Giant magnetoimpedance based immunoassay for cardiac biomarker myoglobin

RSC - Anal. Methods latest articles - Thu, 05/25/2017 - 08:17
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00981J, PaperZhen Yang, huanhuan wang, Xinwei Dong, hailong yan, Chong Lei, Yongsong Luo
Herein, a novel method for detection of the cardiac biomarkers myoglobin (Mb) was proposed by using an integrated giant magnetoimpedance (GMI) based immunosensor. The GMI sensor integrated magnetic sensing elements...
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DETERMINATION OF BISMUTH (III) IN ENVIRONMENTAL AND PHARMACEUTICAL SAMPLES USING ORGANIC REAGENT

RSC - Anal. Methods latest articles - Thu, 05/25/2017 - 05:16
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00412E, PaperChitra Verma, Kavita Tapadia, Anupam Bala Soni, Ashima Sharma
A new, selective and highly sensitive nanodrop spectrophotometric (NDS) method was developed for the determination of bismuth (III) with iodide, and N-octylacetamide (N-OAA). The extraction of Bi (III)-Iodide-N-OAA complex was...
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Infrared-Atmospheric Solids Analysis Probe (IR-ASAP) Mass Spectrometry for Ambient Analysis of Volatile Compounds Without Heated Gas

RSC - Anal. Methods latest articles - Thu, 05/25/2017 - 05:16
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00874K, PaperSara Madarshahian, Milan Pophristic, Charles N McEwen
Atmospheric solids analysis probe (ASAP) mass spectrometry is an effective means for rapidly analyzing liquids, solids, or material surfaces by direct introduction into an atmospheric pressure (AP) ionization source. Sample...
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Recent Liquid Chromatographic Approaches and Developments for the Separation and Purification of Carbohydrates

RSC - Anal. Methods latest articles - Wed, 05/24/2017 - 10:08
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01094J, Critical ReviewGabe Nagy, Tianyuan Peng, Nicola Lucia Brendel Pohl
Carbohydate purification remains a bottleneck in securing analytical standards from natural sources or by chemical or enzymatic synthesis. This review highlights the scope and remaining limitations of recent approaches and...
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A facile microwave - hydrothermal synthesis of fluorescent carbon quantum dots from bamboo tar and its application

RSC - Anal. Methods latest articles - Wed, 05/24/2017 - 10:08
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01069A, PaperQian Liang, Yu-Lin Wang, Fengcai Lin, Maosheng Jiang, Pengfei Li, Biao Huang
Bamboo tar is a water-insoluble semi-solid by-product generated from bamboo charcoal processing. A simple and rapid method to convert bamboo tar into carbon quantum dots (CQDs) was developed by a...
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Fourier transform infrared spectroscopy coupled with chemometrics for determining geographical origin of kudzu root and detection and quantification of adulterants in kudzu root

RSC - Anal. Methods latest articles - Tue, 05/23/2017 - 08:59
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00876G, PaperLeQian Hu, chunling yin
Fourier transform infrared spectroscopy and chemometrics to determine the geographical origin of kudzu root and detect and quantify adulterants in kudzu root was investigated in this work. Total 150 natural...
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Square wave voltammetry enables fast quantification and evaluation of Bi3+ extraction from eye shadow samples

RSC - Anal. Methods latest articles - Mon, 05/22/2017 - 11:38
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01077J, PaperLeandro Antonio de Resende Ribeiro, Lauro Antonio Pradela-Filho, Wilson Tiago da Fonseca, Diele AG Araujo, Rosana MN Assuncao, Regina Massako Takeuchi, Andre Luiz dos Santos
In this study, a square wave anodic stripping voltammetric method was developed to quantify Bi3+ in eye shadow samples. The best results were obtained in 1.0 mol L-1 NaOH as...
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Integrated Microfluidic Chip with Nanobiosensor for Rapid and Label-free Detection of Specific Gene

RSC - Anal. Methods latest articles - Mon, 05/22/2017 - 07:31
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00950J, PaperCongxiao Zhang, Xuefei Lv, Yasmeen Saeed, Hong Qing, Yulin Deng
The biomolecular detection technique is tending to develop in minimization, automatization, rapidity, sensitivity and low cost, which is urgently needed as "point of care test" or "rapid test" in clinical...
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Nondestructive detection of triclosan in antibacterial hand soap using digital labelled Raman spectroscopy

RSC - Anal. Methods latest articles - Mon, 05/22/2017 - 06:31
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00118E, PaperXi Han, Zong Tan, Zhixuan Huang, Xiaodong Chen, Yan Gong, Qifeng Li, Kexin Xu, Da Chen
The wide use of antibacterial hand soap containing triclosan has raised the potential threat to health, and the detection of triclosan is thus extremely important. Here we introduce an efficient...
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Laser-Based Ambient Mass Spectrometry

RSC - Anal. Methods latest articles - Mon, 05/22/2017 - 06:31
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00997F, MinireviewSy-Chyi Cheng, Christopher Shiea, Yeou-Lih Huang, Chin-Hsiung Wang, Yi-Tzu Cho, Jentaie Shiea
Laser has been an important tool in mass spectrometry due to its multifunctional capability of desorption and ionization. However, the ionization efficiency by irradiating laser beam on sample such as...
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