Analytical Chemistry News

Rapid determination of impurity of boron nitride in amorphous boron powder using inductively coupled plasma-atomic emission spectrometry (ICP-AES) and ion chromatography(IC)

RSC - Anal. Methods latest articles - Tue, 05/02/2017 - 05:54
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00140A, PaperAbhay Yadav, Nitin Bulakh, Amit Gupta, Nirmala Sikder, Arun Kanti Sikder
Ever increasing use of amorphous boron powder (ABP) in high energy materials (HEMs) and allied composition has drawn attention for the frequent analysis of boron(B). Presence of nitrogen in inert...
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A sensitive and selective electrochemical nitrite sensor based on glassy carbon electrode modified with cobalt phthalocyanine-supported Pd nanoparticles

RSC - Anal. Methods latest articles - Mon, 05/01/2017 - 07:45
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01004D, PaperXueying Song, Li Gao, Yamin Li, Liqun Mao, Jing-He Yang
The cobalt phthalocyanine (Pd/CoPc) supported palladium nanoparticles composite materials are synthesized by using a facile methanol-mediated Weakly-Capping Growth Approach with anhydrous methanol as the mild reductant. Pd/CoPc nanorods have been...
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High Sensitivity Cysteine Detection Using a Novel Fluorescent Ag Nanocluster

RSC - Anal. Methods latest articles - Mon, 05/01/2017 - 05:45
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00310B, PaperHaomin Liu, Gang Mei, Shu Chen, Yun Fei Long
A fluorescent Ag nanocluster (AgNCs) stabilized by carboxymethyl dextran (CMD) was prepared by the photochemical reduction the mixture of CMD and [Ag(NH3)2]+ under ultraviolet C (UVC) light irradiation. Further study...
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Closed vessel microwave digestion of air filters for measurements of elemental iodine

RSC - Anal. Methods latest articles - Mon, 05/01/2017 - 05:45
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01017F, PaperDiane Ling Ying Tiong, Boon Kin Pong, Richard D Webster
An acid assisted closed vessel microwave digestion procedure was developed for the treatment of fine airborne particulate matter that allows elemental iodine to be solubilised simultaneously to other metallic elements....
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A magnetic restricted access material for rapid solid phase extraction of multiple macrolide antibiotics in honey

RSC - Anal. Methods latest articles - Mon, 05/01/2017 - 05:45
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00478H, PaperLijun Liu, Bingcheng Yang, Feifang Zhang, Xinmiao Liang
A magnetic restricted access material (MRAM) sorbent has been synthesized and for the first time used for extraction macrolide antibiotics (MACs). It was prepared using Fe3O4@SiO2 nanoparticles as support substrate,...
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Facile colorimetric assay for trinitrotoluene based on the intrinsic peroxidase-like activity of MoS2 nanosheets

RSC - Anal. Methods latest articles - Mon, 05/01/2017 - 05:45
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00484B, PaperYan Wang, Yi He, Rufang Peng, Shi-Jin Chu
In this study, a facile colorimetric assay for 2, 4, 6-trinitrotoluene (TNT) in aqueous solution based on the intrinsic peroxidase-like activity of cysteine protected molybdenum disulfide nanosheets (Cys-MoS2 NSs) is...
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Automated chemical fingerprinting of Mexican spirits derived from Agave (tequila and mezcal) using direct-injection electrospray ionisation (DIESI) and low-temperature plasma (LTP) mass spectrometry

RSC - Anal. Methods latest articles - Fri, 04/28/2017 - 12:22
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00793K, PaperSandra Martinez-Jarquin, Abigail Moreno-Pedraza, Daniel Cazarez-Garcia, Robert Winkler
Tequila and mezcal are Mexican spirits prepared from agave plants. The regulations for the designation 'tequila' are very strict with respect to used agave species, the geographical origin, and the...
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Potentiometric Determination of Urine Iodide by Nanoparticles Modified Carbon Paste Electrode

RSC - Anal. Methods latest articles - Fri, 04/28/2017 - 09:18
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00358G, PaperNing Wang, Fenfen Wang, Yeting Liao, Huanhuan Liu, Yijun Li, Xi-Wen He
A simple and sensitive solid carbon paste electrode (CPE) based on nanoparticles of silver iodide and silver sulfide was prepared for potentiometric determination of iodide in urine samples. The results...
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Direct and interference-free determination of thirteen phenolic compounds in red wines using chemometrics-assisted HPLC-DAD strategy for the authentication of vintage year

RSC - Anal. Methods latest articles - Thu, 04/27/2017 - 07:09
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00415J, PaperZhi Liu, Hai-Long Wu, Li-Xia Xie, Yong Hu, Huan Fang, Xiao-Dong Sun, Tong Wang, Rong Xiao, Ruqin Yu
In the present work, a novel chemometrics-assisted analytical strategy that combines three-way high performance liquid chromatography-diode array detection (HPLC-DAD) data with second-ord- er calibration method based on alternating trilinear decomposition...
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Simultaneous determination of [gamma]-hydroxybutyric acid, ibotenic acid and psilocybin in saliva samples by capillary electrophoresis coupled with a contactless conductivity detector

RSC - Anal. Methods latest articles - Thu, 04/27/2017 - 07:09
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00742F, PaperPiret Saar-Reismaa, Merike Vaher, Mihkel Kaljurand, Maria Kulp, Jekaterina Mazina-Sinkar
The aim of the study was to develop a methodology for the determination of [gamma]-hydroxybutyric acid (GHB), ibotenic acid (IBO) and psilocybin (PY) abuse in human saliva. Capillary electrophoresis with...
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BSA Directed-Synthesis of Biocompatible Fe3O4 Nanoparticles for Dual-Modal T1 and T2 MR Imaging in Vivo

RSC - Anal. Methods latest articles - Thu, 04/27/2017 - 06:09
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00270J, PaperDong Li, Minghui Hua, Kun Fang, Rong Liang
High-performance magnetic resonance (MR) imaging contrast agents are the key to reliable and accurate diagnosis of diseases using MR imaging technique. Especially, dual-modal MR imaging nanoprobes that integrated the advantages...
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Analysis of Hydrogen Isotopes with Quadrupole Mass Spectrometer

RSC - Anal. Methods latest articles - Wed, 04/26/2017 - 11:05
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00457E, PaperDawei Cao, Shuming Peng, Xiaojun Chen, Jingwei Hou, Ping Chen, Chengjian Xiao, yu gong, Heyi Wang
Hydrogen isotope separation is one of the most critical technological problems in nuclear fusion researches, whereas, in order to assess accurately the performance of hydrogen isotope separation, quantitative analysis of...
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Surface-enhanced Raman scattering using monolayer graphene-encapsulated Ag nanoparticles as a substrate for sensitive detection of 2,4,6-trinitrotoluene

RSC - Anal. Methods latest articles - Wed, 04/26/2017 - 10:04
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00724H, PaperZhuo Chen, Lu Qiu, Yunfei Tian, Y.-I. Lee, Xiandeng Hou, Li Wu
We developed a surface-enhanced Raman scattering (SERS)-active substrate based on chemical vapor deposition (CVD)-growth monolayer graphene-encapsulated silver nanoparticles (Ag NPs) and used it for the detection of 2,4,6-trinitrotoluene (TNT). Monolayer...
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Calibration transfer of flour NIR spectra between benchtop and portable instruments

RSC - Anal. Methods latest articles - Wed, 04/26/2017 - 08:04
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00391A, PaperAnna Luiza Bizerra Brito, Ada Vivianny Pereira Santos, Karla Tavares Melo Milanez, M. J. C . Pontes , Liliana Pontes
This work reports on the use of different strategies of calibration transfer to determine crude protein and fiber properties in samples of functional flours analyzed with benchtop (primary) and portable...
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Tellurium Speciation in Bioleaching Solution by Hydride Generation Atomic Fluorescence Spectrometry

RSC - Anal. Methods latest articles - Wed, 04/26/2017 - 08:04
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00866J, PaperMao Chen, Lichuan Wu, Xin Yi, Kaizhi Yang, Hongguan Xie
The speciation analysis of tellurium in bioleaching solution is of great value for the study of bacteria leaching mechanism of tellurium ores and further separation and extraction of tellurium from...
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Characterising and reducing the blank response from mercury vapour sorbent tubes

RSC - Anal. Methods latest articles - Wed, 04/26/2017 - 08:04
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00451F, PaperRichard J C Brown, Emma Braysher, Elizabeth McGhee, Sharon L Goddard, Hugo Ent, Ki-Hyun Kim, Jasslie Nielsen
An investigation into the factors contributing to the blank response of sorbent tubes used for sampling and measuring mercury vapour is presented. These contributing factors are quantified and strategies to...
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Electrochemical impedance spectroscopy of blood for sensitive detection of blood hematocrit, sedimentation and dielectric properties

RSC - Anal. Methods latest articles - Wed, 04/26/2017 - 08:04
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00714K, PaperAlexander Zhbanov, Sung Yang
The electrochemical impedance spectroscopy (EIS) is a highly promising tool for the analysis of blood. The electrical properties of plasma and blood cells provide fundamental insights into the health status...
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Ultrasound assisted supramolecular solvent microextraction coupled with graphite furnace atomic absorption spectrometry for speciation analysis of inorganic arsenic

RSC - Anal. Methods latest articles - Wed, 04/26/2017 - 08:04
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00738H, Paperhomeira ebrahimzadeh, Rouhollah Kashanaki, Morteza Moradi
A novel ultrasonic-assisted supramolecular solvent microextraction (USASS-ME) method was proposed for the selective microextraction of As (III, V) prior to their determination by graphite furnace atomic absorption spectrometry. Supramolecular solvent...
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A pseudo-ELISA based on molecularly imprinted nanoparticles for detection of gentamicin in real samples

RSC - Anal. Methods latest articles - Wed, 04/26/2017 - 07:04
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00398F, PaperSiping Tang, Francesco Canfarotta, Katarzyna Smolinska-Kempisty, Elena Piletska, Antonio Guerreiro, Sergey A Piletsky
The enzyme-linked immunosorbent assay (ELISA) is one of the most widely employed tests in diagnostics, and it relies on the use of antibodies to quantify the molecule of interest. Molecularly...
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A glucometer-based strategy for sensitive DNA methyltransferase activity detection via polymerization nicking reaction and enzyme amplification

RSC - Anal. Methods latest articles - Wed, 04/26/2017 - 07:04
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00712D, CommunicationYing Chen, HongChao Yi
DNA methyltransferase (MTase) is closely related to the DNA methylation level in many biological processes and has been recognized as a predictive cancer biomarker which occurs before other signs of...
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