Analytical Chemistry News

A Novel Sensitive and Selective Colorimetric Detection of Arsenate in Aqueous Solution by Fenton-Like Reaction of Fe3O4 Nanoparticles

Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01452C, PaperAugustine Anand Babu Christus, Panneerselvam Perumal, Ravikumar Ayyanu
In this paper, we have presented a novel colorimetric sensor for the detection of arsenate in aqueous solution. The Magnetic nanoparticles (Fe3O4 NPs) prepared by hydrothermal process were characterized by...
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A sensitive aptasensor for detection of β-amyloid oligomers based on metal-organic frameworks as electrochemical signal probes

RSC - Anal. Methods latest articles - Sat, 08/11/2018 - 01:10
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00736E, PaperYanli Zhou, Congming Li, Xiaoqiao Li, Xu Zhu, Baoxian Ye, Maotian Xu
In this study, we developed a novel and facile electrochemical aptasensor for β-amyloid (Aβ) oligomers detection based on metal-organic frameworks (MOFs) as signal probes. By using aptamer-tethered gold nanoflowers (AuNFs)...
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Simultaneous Detection of Hydrogen and Methane in Breath for the Diagnosis of Small Intestinal Bacterial Overgrowth by Fast Gas Chromatography

RSC - Anal. Methods latest articles - Fri, 08/10/2018 - 12:53
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01451E, PaperFan Gao, Min Wang, Xusheng Zhang, Junyu Zhang, Yingying Xue, Hao Wan, Ping Wang
Hydrogen and methane breath test has been widely used in the diagnosis of SIBO (small intestinal bacterial overgrowth), which is noninvasive and convenient with good accuracy. However, most studies use...
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Development of a newly and friendly method to evaluate of phenolic compounds from Flos Lonicerae Japonicae by ultra-high performance supercritical fluid chromatography (UHPSFC) combined with chemometrics

RSC - Anal. Methods latest articles - Thu, 08/09/2018 - 00:10
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01408F, PaperHai Jiang, Liu Yang, xudong xing, Meiling Yan, bingyou yang, Lin Yang, Mingyu Cui, Qiuhong Wang, Haixue Kuang
In recent years, the ultra-high performance supercritical fluid chromatography (UHPSFC) has become a superior technique and powerful analysis tool for the efficient separation of natural products. Chemical variation of 10...
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Ultrasound-assisted emulsification of solidified floating organic drop microextraction for the pre-concentration of cadmium in food and water samples

RSC - Anal. Methods latest articles - Wed, 08/08/2018 - 08:59
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01401A, PaperFabio de Souza Dias, Lucilia Alves Meira, Jeferson Barreto, Leandro Peixoto
In this work, a procedure for pre-concentration and determination of cadmium in food samples by FAAS was developed, based on ultrasound assisted emulsification microextraction with solidification of floating organic droplet...
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Calcium alginate microparticles for rare earth elements preconcentration prior to ICP-MS measurements in fresh water

RSC - Anal. Methods latest articles - Wed, 08/08/2018 - 08:59
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01626G, PaperGabriel Gustinelli Arantes Arantes de Carvalho, Denise Freitas Petri, Pedro Oliveira
This work presents a method for the single-stage preconcentration and simultaneous determination of 14 rare earth elements (REE), La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm,...
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A sensitive sandwich structures time-resolved fluorescence method for thrombin detection

RSC - Anal. Methods latest articles - Tue, 08/07/2018 - 21:54
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01135D, PaperYuanfu Zhang, Tao Wu, tingting Hou, Yinghong Zhang, Shuhao Wang
We designed a sensitive and specific time-resolved fluorescence assay for detection human thrombin. This design was based on the amplification of nanoparticles and the specificity of sandwich structure binding of...
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Pesticides in the atmospheric environment: An overview on their determination methodologies

RSC - Anal. Methods latest articles - Tue, 08/07/2018 - 11:38
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01327F, Critical ReviewMadson Nascimento, Gisele Rocha, Jailson de Andrade
The increasing use of synthetic substances such as pesticides has been a major concern around the world, mainly due to the great potential of atmospheric contamination. Pesticides associated with atmospheric...
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Recent advancements in the methodologies applied for the sensitivity enhancement of surface plasmon resonance sensors

RSC - Anal. Methods latest articles - Mon, 08/06/2018 - 06:40

Anal. Methods, 2018, Advance Article
DOI: 10.1039/C8AY00948A, Critical ReviewOzra Tabasi, Cavus Falamaki
Surface plasmon resonance (SPR) technology has widened the use of sophisticated methodologies for studying biological and chemical systems in terms of analyzing protein structures, determining the analyte concentration and retrieval of kinetic and equilibrium parameters.
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Predicting binding affinity of compound-protein interaction by random forest using network topology features

RSC - Anal. Methods latest articles - Mon, 08/06/2018 - 05:40
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01396A, PaperZhanchao Li, Yang Wang, Yun Xie, Li Zhang, Zong Dai, Xiaoyong Zou
Identification of binding affinity between compound and protein is of extraordinary significance to modern pharmacology and drug discovery. Despite the advances in experiment technology, the determination of binding affinity at...
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Cu2+ modulated DNA-templated silver nanoclusters as a turn-on fluorescence probe for the detection of quinolones

RSC - Anal. Methods latest articles - Mon, 08/06/2018 - 04:40
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01497C, PaperRenjun Wang, Xiaolu Yan, Jing Sun, Xiao Wang, Xian-en Zhao, Wei Liu, Shuyun Zhu
In this contribution, DNA-templated silver nanoclusters (DNA-AgNCs) as novel fluorescent probes were successfully utilized for the detection of quinolones for the first time. The as-prepared DNA-AgNCs exhibited strong emission at...
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Highly sensitive colorimetric immunoassay for Escherichia coli O157:H7 based on probe of pseudo enzyme and signal dual amplification

RSC - Anal. Methods latest articles - Mon, 08/06/2018 - 04:40
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01410H, PaperHaoran Huang, Zunyi Wu, Jianfeng Huang, Guangying Zhao, Wenchao Dou
Here we developed a highly sensitive colorimetric immunoassay for the detection of Escherichia coli O157:H7 (E. coli O157:H7). The Fe3O4 nanoparticles coated carboxyl group were synthesized by a one-pot method...
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Self-assembly of Au@Ag core-shell nanocubes embedded with internal standard for reliable quantitative SERS measurements

RSC - Anal. Methods latest articles - Mon, 08/06/2018 - 03:40
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01369A, PaperShuang Lin, Xiang Lin, Yuanlan Liu, Haiyan Zhao, WuLiJi Hasi, Li Wang
Surface enhanced Raman spectroscopy (SERS) has emerged as a powerful spectroscopic tool which offers the information about vibrational mode of molecules. However, quantitative analysis in term of SERS still faces...
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A sensitive label-free FRET probe for glutathione based on CdSe/ZnS quantum dots and MnO2 nanosheets

RSC - Anal. Methods latest articles - Fri, 08/03/2018 - 05:44
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01532E, PaperYueyao Mi, Xiaoxue Lei, Heyou Han, Jiangong Liang, Lingzhi Liu
Glutathione (GSH) is an important antioxidant and plays crucial roles in basic biological functions. So far, it still remains a challenge to develop convenient and reliable ways to quantify and...
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Magnetic deep eutectic solvent based ultrasound-assisted liquid-liquid microextraction method for determination of hexanal and heptanal in edible oils followed by gas chromatography-flame ionization detection

RSC - Anal. Methods latest articles - Fri, 08/03/2018 - 04:43
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01058G, Papershirin babaee, Ali Daneshfar
The use of a novel magnetic deep eutectic solvent (MDES), consisting of inexpensive and simple components called [choline chloride/paracresol] [FeCl4] was examined using an ultrasound assisted liquid-liquid microextraction and back...
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Matrix Effect of Five Kinds of Meat on Colloidal Gold Immunochromatographic Assay for Sulfamethazine Detection

RSC - Anal. Methods latest articles - Fri, 08/03/2018 - 03:43
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01322E, PaperNamei Liu, Keyu Xing, Chun Wang, Ganggang Zhang, Meifang Yuan, Danhong Li, WH Lai, juan peng
Colloidal gold immunochromatographic assay (CG-ICA) was developed to detect sulfamethazine (SM2) residues in five kinds of meat, namely, chicken, pork, shrimp, beef, and fish. The limit of detection (LOD) of...
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Maceration Mediated Liquid-Liquid Extraction of Conjugated Phenolics from Spent Black Tea Leaves

RSC - Anal. Methods latest articles - Fri, 08/03/2018 - 03:43
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01350K, PaperBushra Mukhtar, MUHAMMAD MUSHTAQ, Sumia Akram, Ahmad Adnan
This paper puts forward the application of non-ionic surfactant based maceration to mediate the liberation of conjugated phenolics from of spent black tea leaves (SBTL). The maceration conditions including Triton...
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Simultaneous enantiomeric analysis of chiral non-steroidal anti-inflammatory drugs in water, river sediment and sludge by chiral liquid chromatography-tandem mass spectrometry

RSC - Anal. Methods latest articles - Fri, 08/03/2018 - 02:43
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01417E, PaperXucan Yuan, Xianhui Li, Ping Guo, zhili xiong, Longshan Zhao
A sensitive and reliable analytical method was established for simultaneous enantiomeric analysis of chiral non-steroidal anti-inflammatory drugs (ibuprofen, ketoprofen and flurbiprofen) in water, river sediment and sludge. The enantioseparation of...
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Bionanocomposite-modified glassy carbon electrode for the determination of 4,4’-methylene diphenyl diamine

RSC - Anal. Methods latest articles - Thu, 08/02/2018 - 10:37
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01376D, PaperMasoud Ghaani, Flavia Pucillo, Richard T Olsson, matteo scampicchio, Stefano Farris
A nanosensor based on a glassy carbon electrode modified with the biopolymer chitosan, multi-wall carbon nanotubes, and gold nanoparticles (MWCNTs-CS-Au/GCE) was developed for the determination of 4,4'-diaminodiphenyl diamine (MDA). Cyclic...
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FT-NIR, MicroNIR and LED-MicroNIR for Detection of Adulteration in Palm Oil via PLS and LDA

RSC - Anal. Methods latest articles - Thu, 08/02/2018 - 07:35
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY01239C, PaperKatrul Nadia Basri, Abdur Rehman Laili, Nur Azera Tuhaime, Mutia Nurulhusna Hussain, J. Bakar, Zaiton Sharif, Mohd Fared Abdul Khir, Ahmad Sabirin Zoolfakar
Chemometrics analysis was performed to compare the perfomance of FT-NIR, MicroNIR and LED-NIR for detection of adulteration in palm oil. FT-NIR has a high spectral resolution and signal to noise...
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