Analytical Chemistry News

Electrochemiluminescence biosensing platform for Hg2+ determination based on host-guest interaction between [small beta]-cyclodextrin functionalized Pd nanoparticles and ferrocene

RSC - Anal. Methods latest articles - Wed, 01/10/2018 - 04:11
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02944F, PaperYijie Hu, Zhimin Liu, Haijun Zhan, Zhiqiang Shen
A solid-state electrochemiluminescence (ECL) switch biosensor using Ru(bpy)32+/[small beta]-cyclodextrin-Pd nanoparticles ([small beta]-CY-PdNPs)/Gelatin (Gel) complex and ferrocene-labeled DNA probe (Fer-DNA) for the detection of Hg2+ was successfully developed. The ECL biosensor includes an...
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Hydrogen-bonding-induced colorimetric detection of melamine based on the peroxidase activity of gelatin-coated cerium oxide nanospheres

RSC - Anal. Methods latest articles - Wed, 01/10/2018 - 04:11
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02296D, PaperXiaoyong Jin, Wenqing Yin, Gang Ni, Juan Peng
Herein, we developed a simple and rapid colorimetric assay for detection of melamine using gelatin-coated cerium oxide (Gel-CeO2) nanospheres as peroxidase mimics. Highly monodispersed Gel-CeO2 nanospheres were synthesized through a...
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The Co3O4 nanoparticle-enhanced luminol-O2 chemiluminescence reaction used for the determination of nortriptyline hydrochloride and lamotrigine in pharmaceutical and environmental samples

RSC - Anal. Methods latest articles - Tue, 01/09/2018 - 06:59

Anal. Methods, 2018, Advance Article
DOI: 10.1039/C7AY02227A, PaperMortaza Iranifam, Nasim Rahmati Hendekhale, Haider A. J. Al Lawati
Co3O4 NPs possess oxidase-like activity and could enhance the intensity of the CL reaction. The enhancing effect of Co3O4 NPs on the CL reaction was dependent on the shape of the Co3O4 NPs.
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Label-Free Mesenchymal Stem Cells Enrichment from Bone Marrow Samples by Inertial Microfluidics

RSC - Anal. Methods latest articles - Tue, 01/09/2018 - 04:59
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02500A, PaperLap Man Lee, Jenna M. Rosano, Yi Wang, George Klarmann, Charles J. Garson, Balabhaskar Prabhakarpandian, Kapil Pant, Luis M. Alvarez, Eva Lai
Isolation of pure populations of mesenchymal stem cells from bone marrow aspirate is a critical need in regenerative medicine such as orthopedic and cartilage reconstruction with important clinical and therapeutic...
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A liquid chromatographic method for separations of sacubitril-valsartan and their stereoisomeric impurities

RSC - Anal. Methods latest articles - Mon, 01/08/2018 - 04:48
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02523H, PaperLu Zhou, Liang Zou, LiLi Sun, Hui Zhang, Wenkai Hui, Qiaogen Zou
Sacubitril-valsartan (SV) is a first-in-class inhibitor of the angiotensin II receptor and neprilysin for the treatment of chronic heart failure(HF) and hypertension. A stereoselective normal-phase high performance liquid chromatographic method...
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LIBS Development Methodology for Forensic Nuclear Materials Analysis

RSC - Anal. Methods latest articles - Mon, 01/08/2018 - 04:48
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02520C, PaperBobby Bhatt, Hudson Angeyo Angeyo Kalambuka, Alix Dehayem-Kamadjeu
Nuclear forensics (NF) is an important tool for analysis of intercepted nuclear and radiological materials (NRM) to establish the relationship between NRM and their attribution in support of nuclear security....
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Portable near-infrared spectroscopy applied to abuse drugs and medicines analyses

RSC - Anal. Methods latest articles - Mon, 01/08/2018 - 03:45
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02998E, PaperRadigya M Correia, Eloilson Domingos, Flavia Tosato, Nayara Araujo, Julia Almeida, Mayara Silva, Marcelo Caetano Alexandre Marcelo, Rafael S Ortiz, Paulo R Filgueiras, Wanderson Romao
Near infrared (NIR) spectroscopy using portable instrument (microNIR) associated with chemometrics model (partial least squares regression (PLS), principal component analysis (PCA) and hierarchical cluster analysis (HCA)) was applied to quantify...
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Electrospinning: A Carbonized Gold/Graphene/PAN Nanofiber for High Performance Biosensing

RSC - Anal. Methods latest articles - Mon, 01/08/2018 - 03:45
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02880F, PaperPongpol Ekabutr, Wimonwan Klinkajon, Pakakrong Sangsanoh, Orawan Chailapakul, Pimolpun Niamlang, Thitikan Khampieng, Pitt Supaphol
In this study, a novel biosensor was produced from a carbonized hybrid gold (Au)/graphene (G) nanowire fabricated upon a disposable screen-printed carbon electrode (SPCE) in order to amplify signals. The...
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Fe3O4 sphere-assisted microwave distillation coupled with ionic liquid-based HS-SDME followed by GC-MS for the rapid analysis of essential oil in dried lavender

RSC - Anal. Methods latest articles - Mon, 01/08/2018 - 03:45
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02682J, PaperJihong Fu, Yan Zhu, Bing Liu, Jun Tang
In this work, Fe3O4 sphere-assisted microwave distillation (MD) coupled with ionic liquid-based headspace single-drop microextraction (IL-HS-SDME) followed by GC-MS was developed for the analysis of essential oil in dried lavender....
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A gold immunochromatographic assay for simultaneous detection of parathion and triazophos in agricultural products

RSC - Anal. Methods latest articles - Fri, 01/05/2018 - 10:15

Anal. Methods, 2018, Advance Article
DOI: 10.1039/C7AY02481A, PaperBeibei Liu, Hang Gong, Yulong Wang, Xiaoshuai Zhang, Pan Li, Yulou Qiu, Limin Wang, Xiude Hua, Yirong Guo, Minghua Wang, Fengquan Liu, Xianjin Liu, Cunzheng Zhang
A multi-component gold immunochromatographic assay was developed for the rapid and simultaneous detection of parathion and triazophos in agricultural products.
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Development and validation of an HPLC-FLD technique for colistin quantification and its plasma monitoring in hospitalized patients

RSC - Anal. Methods latest articles - Fri, 01/05/2018 - 04:11

Anal. Methods, 2018, Advance Article
DOI: 10.1039/C7AY02585H, PaperA. R. Pinho, M. J. Rocha, G. Alves, A. C. Falcao, A. C. Fortuna
A novel HPLC method with fluorescence detection was successfully developed and validated to accurately quantify colistin in plasma from patients treated with colistimethate sodium.
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Rapid and sensitive colorimetric sensing of the insecticide pymetrozine using melamine-modified gold nanoparticles

RSC - Anal. Methods latest articles - Fri, 01/05/2018 - 04:11

Anal. Methods, 2018, Advance Article
DOI: 10.1039/C7AY02658G, PaperJing-yan Kang, Yu-jie Zhang, Xing Li, Chen Dong, Hong-yu Liu, Li-jing Miao, Paul J. Low, Zhi-xian Gao, Narayan S. Hosmane, Ai-guo Wu
A rapid, selective, visual detection sensor with high sensitivity and low detection limits for the pesticide pymetrozine (PYM) was prepared from melamine-modified gold nanoparticles (M-Au NPs), and shown to be effective in both natural water and food samples.
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A non-enzymatic glucose sensor based on the CuS nanoflakes-reduced graphene oxide nanocomposite

RSC - Anal. Methods latest articles - Fri, 01/05/2018 - 04:11

Anal. Methods, 2018, Advance Article
DOI: 10.1039/C7AY02290E, PaperXiaoyi Yan, Yue Gu, Cong Li, Bo Zheng, Yaru Li, Tingting Zhang, Zhiquan Zhang, Ming Yang
A CuS nanoflakes-reduced graphene oxide nanocomposite was synthesized successfully for non-enzymatic glucose sensing.
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Nitrogen Doped Carbon Quantum Dots-enhanced Chemiluminescence Method for the Determination of Mn2+

RSC - Anal. Methods latest articles - Fri, 01/05/2018 - 03:11
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02806G, PaperJunmei Zhang, Xiaoxia Chen, Yue Li, Suqin Han, Yao Du, Haizhen Liu
Nitrogen doped carbon quantum dots (NCQDs) was synthesized via a ultrasonic method with ascorbic acid as carbon sources and ammonia as nitrogen sources. The synthesized NCQDs could significantly enhance the...
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Anticancer component identification from the extract of Dysosma versipellis and Glycyrrhiza uralensis based on support vector regression and mean impact value

RSC - Anal. Methods latest articles - Thu, 01/04/2018 - 10:44

Anal. Methods, 2018, Advance Article
DOI: 10.1039/C7AY02465G, PaperHailiu Fan, Jianbang Xuan, Kaixuan Zhang, Jianlan Jiang
A high-quality SVR-PSO model was established for the extract of Dysosma versipellis and Glycyrrhiza uralensis and anticancer components were identified by using the MIV.
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An aptamer-based electrochemical biosensor for simple and sensitive detection of staphylococcal enterotoxin B in milk

RSC - Anal. Methods latest articles - Thu, 01/04/2018 - 09:43

Anal. Methods, 2018, Advance Article
DOI: 10.1039/C7AY02452E, PaperXiaohui Xiong, Xinping Shi, Yuanjian Liu, Lixia Lu, Jingjing You
The relative percentage error between the proposed method and ELISA ranged from -8.38 to 8.33, which indicates that there is no significant difference between the results.
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Colorimetric detection of residual hydrogen peroxide in soaked food based on Au@Ag nanorods

RSC - Anal. Methods latest articles - Thu, 01/04/2018 - 06:37
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02819A, PaperQingai Chen, Tianran Lin, Jianli Huang, Yi Chen, Liangqia Guo, Fengfu Fu
A simple and selective colorimetric method for H2O2 detection in soaked food samples was developed by using Au@Ag nanorods (Au@Ag NRs) as the signal conducer. In the presence of H2O2,...
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A lysosome-targeting colorimetric and fluorescent dual signal probe for sensitive detection and bioimaging of hydrogen sulfide

RSC - Anal. Methods latest articles - Thu, 01/04/2018 - 06:37
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02492D, PaperCuiyan Wu, Xiaojun Hu, Biao Gu, Peng Yin, Wei Su, Yaqian Li, Qiujun Lu, Youyu Zhang, Haitao Li
In this study, we developed a lysosome-targeting fluorescent probe, 3-(2,4-dinitrophenoxy)-2-(4-morpholinophenyl)-4H-chromen-4-one (DMC), for the detection of hydrogen sulfide (H2S) based on excited-state intramolecular proton transfer (ESIPT). Upon the treatment with H2S,...
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Sensitive detection of Brilliant Blue using fluorescence resonance energy transfer with YVO4:Eu nanocrystals as donors

RSC - Anal. Methods latest articles - Thu, 01/04/2018 - 06:37

Anal. Methods, 2018, Advance Article
DOI: 10.1039/C7AY02281F, PaperYongli Yu, Jianli Niu, Wei Li, Haixia Liu, Meng Wang
A FRET system was established using YVO4:Eu nanocrystals (NCs) as the energy donors and Brilliant Blue (BB) as the energy acceptor. Based on FRET, fluorimetry was successfully applied to determine BB in juice and candy samples.
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Analysis of Cuban nickeliferous minerals by laser-induced breakdown spectroscopy (LIBS): non-conventional sample preparation of powder samples

RSC - Anal. Methods latest articles - Thu, 01/04/2018 - 03:36
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02521A, PaperMarco Speranca, Mario Pomares, Edenir Rodrigues Pereira-Filho
In the present study, a new method to quantify Al, Cr, Fe, Mg, Mn, Cr and Ni in nickeliferous minerals by laser-induced breakdown spectroscopy (LIBS) is proposed. Thirty-three mineral powder...
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