Analytical Chemistry News

A supercharged fluorescent protein based FRET sensing platform for detection of heparin contamination

RSC - Anal. Methods latest articles - Mon, 09/18/2017 - 05:03
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01907F, PaperYubin DING, Min Zhou, Hui Wei
Development of biosensors for the detection of oversulfated chondroitin sulfate (OSCS), the key contaminant in heparin (Hep), is a greatly demanding but challenging task. In this work, a FRET system...
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In-situ quantification of volatile ethanol in complex components based on colorimetric sensor array

RSC - Anal. Methods latest articles - Mon, 09/18/2017 - 05:03
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01639E, PaperHao Lin, Zhong xiu Man, Binbin Guan, Quansheng Chen, Hongjuan Jin, Zhaoli Xue
This paper presents a novel method for chemically responsive dyes selection and ethanol quantification in mixed volatile organic compounds (VOCs) using colorimetric sensor array (CSA). Chemically responsive dyes (mainly composed...
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Independent macroscopic chemical mappings of cultural heritage materials with reflectance imaging spectroscopy : the case study of a 16th century Aztec manuscript

RSC - Anal. Methods latest articles - Mon, 09/18/2017 - 05:03
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00749C, PaperFabien Maxime Pottier, Salomon Kwimang, Anne Michelin, Christine Andraud, Fabrice Goubard, Bertrand Lavedrine
Reflectance spectral imaging is a powerful tool for the non-invasive study of cultural heritage objects. Particular visible to short wave infrared (400-2500 nm) spectral features are linked to compositional information...
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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, 09/15/2017 - 09:23

Anal. Methods, 2017, 9,5003-5008
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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Correction: Normalization strategy for the LC-MS bioanalysis of protein kinetics assays via internal proteolytic analyte utilized as control standard: application in studies of HIV-1 protease cleavage of HIV-1 Gag polyprotein in HIV maturation...

RSC - Anal. Methods latest articles - Fri, 09/15/2017 - 08:22
Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY90125A, Correction Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Joseph L. Cantone, Zeyu Lin, Ira B. Dicker, Dieter M. Drexler
To cite this article before page numbers are assigned, use the DOI form of citation above.
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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, 09/14/2017 - 07:07

Anal. Methods, 2017, 9,5009-5014
DOI: 10.1039/C7AY00874K, PaperSara Madarshahian, Milan Pophristic, Charles N. McEwen
The IR-ASAP approach described is a simple yet highly sensitive ambient ionization method for analysis of vaporizable compounds without need of heated pressurized gas, thus making it especially amenable to portable mass spectrometers.
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Rapid identification of fermentation stages of bioethanol SSF using FT-NIR spectroscopy: Comparisons of linear and non-linear algorithms for multiple classification issues

RSC - Anal. Methods latest articles - Thu, 09/14/2017 - 05:07
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01861D, PaperHui Jiang, Congli Mei, Quansheng Chen
Solid state fermentation (SSF) is a critical step in achieving bioethanol product, and an effective monitoring of SSF process is on the urgent need due to the rapid changes in...
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A sensitive and group-specific monoclonal antibody-based indirect competitive ELISA for the determination of salbutamol in swine meat and liver samples

RSC - Anal. Methods latest articles - Thu, 09/14/2017 - 04:06
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01628J, PaperAnping Deng, Yin Yuan, Yingying Zhao, Kang Wu, Hong Yang, Kang Zhao, Jianguo Li
Salbutamol (SAL), a kind of [small beta]-adrenergic receptor agonists ([small beta]-agonists) which can enhance the lean meat-to-fat ratio, has been inhibited as an additive used in animal feeds for livestock production in...
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Google Analytics and Quick Response for Advancement of Gold Nanoparticles Dual Lateral Flow Immunoassay for Malaria - Plasmodium lactate dehydrogenase (pLDH)

RSC - Anal. Methods latest articles - Wed, 09/13/2017 - 03:45
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01645J, PaperLungani Mthembu , Myalowenkosi Innocent Sabela , Mbuso Mlambo, Lawrence Mzukisi Madikizela, Kanchi Suvardhan, Halalisani Gumede, Phumlane Selby Mdluli
A rapid dual lateral flow diagnostic assay fabricated with quick response (QR) barcodes was developed to improve quality control of malaria diagnostic tests, as well as to enhance systems for...
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Preparation of hierarchical Co(OH)2 nanotube arrays grown on carbon cloth and its use in non-enzymatic glucose sensing

RSC - Anal. Methods latest articles - Tue, 09/12/2017 - 05:28
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01991B, PaperMujia Huang, Xue Luo, Daiping He, Ping Jiang
Hierarchical Co(OH)2 nanotube arrays grown oncarbon cloth (Co(OH)2 NTAs/CC) was prepared by a simple two-step approach. Firstly, the layered cobalt carbonate hydroxide nanowire arrays grown on carbon cloth (LCCH NWAs/CC)...
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Laser-based ambient mass spectrometry

RSC - Anal. Methods latest articles - Mon, 09/11/2017 - 08:03

Anal. Methods, 2017, 9,4924-4935
DOI: 10.1039/C7AY00997F, MinireviewSy-Chyi Cheng, Christopher Shiea, Yeou-Lih Huang, Chin-Hsiung Wang, Yi-Tzu Cho, Jentaie Shiea
This study summarized laser-based ambient mass spectrometric (AMS) techniques with regard to their fundamentals, ionization mechanisms, and recent applications.
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Determination of Benzo[a]pyrene in Smoked Foods by High-performance Liquid Chromatography Based on Magnetic Solid Phase Extraction

RSC - Anal. Methods latest articles - Mon, 09/11/2017 - 05:01
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01421J, Paperyan pan, Zhifen Deng, Yanlong Chen, Wenfen Zhang, Zhicong Yang, Wenjie Zhao, Shusheng Zhang
In this paper, a sensitive and practical method for the determination of benzo[a]pyrene (BaP) in smoked foods with HPLC-FLD was developed. In order to improve the detection limit of HPLC-FLD,...
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Purification of Nitrogen doped graphene quantum dots via liquid-liquid extraction system of tetrahydrofuran-(NH4)2SO4-Water and its application to sensitive iron (III) ions determination

RSC - Anal. Methods latest articles - Mon, 09/11/2017 - 05:01
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01841J, PaperWenjun Zhang, Shao Kang. Tang, Shao Pei Zhang, Yi Chen
Abstract A facile, rapid method based on liquid-liquid extraction system for the purification of graphene quantum dots is reported in this work. Nitrogen-doped graphene quantum dots (N-GQDs) were synthesized by...
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Packed-Nanofiber Solid Phase Extraction Coupled with HPLC for Determination of Chloramphenicol in Milk

RSC - Anal. Methods latest articles - Mon, 09/11/2017 - 05:01
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01192J, PaperLanling Chu, Jian-Jun Deng, Xuejun Kang
A sensitive analytical method based on packed-nanofiber solid phase extraction (PFSPE) and high performance liquid chromatography (HPLC) has been developed for determining chloramphenicol (CAP) in milk. Polystyrene-polyvinylpyrrolidone (PS-PVP) composite nanofibers...
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Liquid chromatography-mass spectrometry determination of iloperidone on rat dried blood spots: Application to pharmacokinetics

RSC - Anal. Methods latest articles - Mon, 09/11/2017 - 05:01
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01589E, PaperNageswara Rao Ramisetti, Guru Prasad Katuri, Sara Khalid, K. S. Praneetha, Dilip Dodda, Veeresham Ciddi
A simple, rapid and highly sensitive liquid chromatography-mass spectrometry method was developed and validated for analysis of iloperidone on rat dried blood spots. The chromatographic separation was achieved on an...
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Inverse opals of photonic crystal hydrogels for selective sensing of lead ions

RSC - Anal. Methods latest articles - Fri, 09/08/2017 - 10:24
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01887H, PaperShirong Liu, Liyan Qin, Zhongbin Ni, Mingqing Chen
Acrylamide (AM) and hydroxyethyl methacrylate (HEMA) copolymer based inverse opals of photonic crystal hydrogels (PCHs) were fabricated by using the colloidal crystal template method. The effects of pH, ionic strength...
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Evaluation of Dilute-and-shoot and Solid-phase Extraction Methods for the Determination of S-metolachlor and Metolachlor-OA in Runoff Water Samples by Liquid Chromatography tandem Mass Spectrometry

RSC - Anal. Methods latest articles - Thu, 09/07/2017 - 05:02
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01698K, PaperJean Lucas de Oliveira Arias, Antunielle Schneider, Jahir Antonio Batista-Andrade, Augusto Alves Vieira, Vinicios Rafael Gehrke, Edinalvo Rabaioli Camargo, Sergiane S Caldas, Ednei Gilberto Primel
In this study, two fast methods, i. e., the dilute-and-shoot one and the solid-phase extraction (SPE) procedure, were evaluated for the determination of S-metolachlor and metolachlor-OA in runoff water samples...
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Characterization of the major chemical constituents in Ardisia Gigantifolia by high performance liquid chromatography coupled to electrospray ionization and quadrupole time-of-flight mass spectrometry

RSC - Anal. Methods latest articles - Thu, 09/07/2017 - 04:02
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01983A, PaperZhenyuan Chen, Yun Ling, Qing Zhang, Haitong Wan
The dried root of Ardisia gigantifolia Stapf. (RAG) is mainly used as a chinese folk medicine. A clear understanding of the major components is very important in their rational clinical...
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A Novel Method to Evaluate Nanofluid Stability Using Multivariate Image Analysis

RSC - Anal. Methods latest articles - Wed, 09/06/2017 - 09:49
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00645D, Technical NoteAnselmo Elcana de Oliveira, Maykon Alves Lemes, Denilson Rabelo
Multivariate image analysis(MIA)-based approach in conjunction with chemometrics is proposed to evaluate the stability of nanofluids prepared by dispersing cobalt ferrite nanoparticles in mineral insulating oil under vigorous mechanical stirring...
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Plasma-based ambient mass spectrometry: a step forward to practical applications

RSC - Anal. Methods latest articles - Wed, 09/06/2017 - 07:48

Anal. Methods, 2017, 9,4908-4923
DOI: 10.1039/C7AY00965H, MinireviewJin Chen, Fei Tang, Cheng'an Guo, Sichun Zhang, Xinrong Zhang
Plasma-based ambient mass spectrometry (AMS) exhibits great potential in the direct analysis of raw samples with minimum pretreatment.
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