Analytical Chemistry News

Coupling solid-phase microextractions and surface-enhanced Raman scattering: Towards a point-of-need tool for hepatic cancer screening

RSC - Anal. Methods latest articles - Wed, 08/09/2017 - 05:24
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01689A, CommunicationJennifer H Granger, Aleksander Skuratovsky, Jill E Shea, Courtney L Scaife, Qun Li, Sean Wang, Marc Poter
A method for performing rapid, highly portable immunoassays at low limits of detection (LoD) has been developed by combining solid-phase microextraction membranes, gold nanoparticle labels, and surface-enhanced Raman scattering. The...
The content of this RSS Feed (c) The Royal Society of Chemistry

Rapid and sensitive detection of E. coli O157:H7 based on antimicrobial peptide functionalized magnetic nanoparticles and urease-catalyzed signal amplification

RSC - Anal. Methods latest articles - Tue, 08/08/2017 - 22:19
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01643C, PaperZhaohui Qiao, Chunyang Lei, Yingchun Fu, Yanbin Li
The development of rapid and sensitive detection of foodborne pathogens could effectively prevent or reduce the outbreaks of foodborne diseases. Herein, a simple, rapid, and sensitive detection of E. coli...
The content of this RSS Feed (c) The Royal Society of Chemistry

Coral 129I/127I measurement method using ICP-MS and AMS with carrier addition

RSC - Anal. Methods latest articles - Tue, 08/08/2017 - 22:19
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01458A, PaperAngel T., VII Bautista, Yasuto Miyake, Hiroyuki Matsuzaki, Fernando P. Siringan
Iodine-129 in coral cores provide historical records of human nuclear activities, establish or confirm coral age models, and trace environmental processes. During the time of this writing, the only published...
The content of this RSS Feed (c) The Royal Society of Chemistry

Aqueous Synthesis of CdTe Quantum Dots by Hydride Generation for Visual Detection of Silver on Quantum Dots Immobilized Paper

RSC - Anal. Methods latest articles - Tue, 08/08/2017 - 21:19
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01705G, PaperKe Huang, Rui Dai, Wenqing Deng, Ling Lin, Ai Zhang, Xin Yuan
A novel visual detection method was developed for silver using CdTe quantum dots (QDs) immobilized paper. CdTe QDs was synthesized in aqueous solution by hydride generation (HG) for the first...
The content of this RSS Feed (c) The Royal Society of Chemistry

Amino Acid Profiling from Fingerprints, Novel Methodology Using UPLC-MS

RSC - Anal. Methods latest articles - Tue, 08/08/2017 - 20:19
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01603D, Technical NoteWard van Helmond, Chris-Jan Kuijpers, Elise van Diejen, Jincey Spiering, Brent Maagdelijn, Marcel de Puit
Fingermark evidence is extensively used in criminal investigations. Hence, there have been many investigations into the chemical compounds present in fingerprint deposits. In this technical note we describe the analysis...
The content of this RSS Feed (c) The Royal Society of Chemistry

Photocatalytic and Antibacterial Biomimetic ZnO Nanoparticles

RSC - Anal. Methods latest articles - Mon, 08/07/2017 - 21:00
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01468F, PaperNishant Kumar, Akhshay Singh Bhadwal, Mayank Garg, Reema Sharma, Suman Singh, Boris Mizaikoff
The synthesis of nanoscale materials has gained considerable attention due to their excellent properties also in photocatalysis and as antimicrobials. More recently, bio-reduction mediated synthesis of such nanostructures has emerged...
The content of this RSS Feed (c) The Royal Society of Chemistry

Ultrasensitive and selective colorimetric detection of acetamiprid pesticide based on the enhanced peroxidase-like activity of gold nanoparticles

RSC - Anal. Methods latest articles - Mon, 08/07/2017 - 21:00
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01451A, PaperWenping Yang, Yuangen Wu, Han Tao, Jing Zhao, Huayun Chen, Shuyi Qiu
This paper reports a new colorimetric aptasensor for the detection of acetamiprid pesticides with high sensitivity and selectivity based on the enhanced peroxidase-like activity of gold nanoparticles (AuNPs). The aptasensor...
The content of this RSS Feed (c) The Royal Society of Chemistry

Emulsification liquid-liquid microextraction based on deep eutectic solvents: an extraction method for the determination of sulfonamides in water samples

RSC - Anal. Methods latest articles - Mon, 08/07/2017 - 07:47

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY01332A, PaperLingling Liu, Tao Zhu
In this study, a simple, inexpensive and sensitive method named emulsification liquid-liquid microextraction based on deep eutectic solvents (ELLME-DES) was used for the extraction of sulfonamides (SAs) from water samples, including sulfadiazine (SDZ), sulfamerazine (SMR), sulfametoxydiazine (SDD) and sulfamethoxazole (SMX).
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry

Fast gradient normal-phase high pressure liquid chromatography for rapid baseline separation of nine vitamin E homologues in palm tocotrienol rich fraction (TRF)

RSC - Anal. Methods latest articles - Sun, 08/06/2017 - 22:40
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00924K, PaperOon Hock Tan, Emily Hui Peng Tan, Hong Ing Ooi
A rapid, accurate and precise normal-phase high pressure liquid chromatographic method was developed and validated for simultaneous determination of nine vitamin E homologues comprised of [small alpha]-tocomonoenol, [small alpha]-, [small beta]-, [gamma]-, [small delta]-tocopherols...
The content of this RSS Feed (c) The Royal Society of Chemistry

Ionic liquid based in-situ solvent formation microextraction followed by on-line phase separation coupled with cold vapor-atomic absorption spectrometry for mercury determination in seafood samples

RSC - Anal. Methods latest articles - Sun, 08/06/2017 - 22:40
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01270E, PaperSaeideh Molaei, Shahram Seidi, Abolfazl Saleh, Vanik gholipour
An ionic liquid based in-situ solvent formation microextraction (IL-ISFME) followed by on-line phase separation coupled to cold vapor-atomic absorption spectrometry (CV-AAS) was introduced based on using a homemade in-line filter...
The content of this RSS Feed (c) The Royal Society of Chemistry

Tuning the Aggregation/Disaggregation Behaviours of ZnSe Quantum Dots for High-Sensitivity Fluorescent Rutin Sensor

RSC - Anal. Methods latest articles - Sun, 08/06/2017 - 22:40
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01480E, PaperYurong Tang, Shuguang Yan, Hang Ye, Fenglan Zheng, Liu Feng, Feng Liu, Xulong Li
The design of quantum dots as a new sensing platform is very important for developing high-sensitivity fluorescent sensors. However, achieving new strategy is still a great challenge. Here, a new...
The content of this RSS Feed (c) The Royal Society of Chemistry

A non-enzymatic ethanol sensor based on a nanostructured catalytic disposable electrode

RSC - Anal. Methods latest articles - Fri, 08/04/2017 - 07:28

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY01078H, PaperMarta M. Pereira Silva Neves, M. Begona Gonzalez-Garcia, Pablo Bobes-Limenes, Alejandro Perez-Junquera, David Hernandez-Santos, Francisco Jose Vidal-Iglesias, Jose Solla-Gullon, Pablo Fanjul-Bolado
Disposable screen-printed carbon electrodes modified with platinum nanoparticles were employed in the electrocatalytic detection of ethanol. The developed non-enzymatic ethanol sensor was applied to real samples.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry

Different sample preparation methods for analysis of suspension fertilizers combining LIBS and liquid-to-solid matrix conversion: determination of essential and toxic elements

RSC - Anal. Methods latest articles - Thu, 08/03/2017 - 10:55
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01049D, PaperDaniel Andrade, Marco Speranca, Edenir Rodrigues Pereira-Filho
A novel calibration method was developed for the determination of macronutrients in suspension fertilizer samples by laser-induced breakdown spectroscopy (LIBS). The fertilizer samples were mixed with 10% m v-1 polyvinyl...
The content of this RSS Feed (c) The Royal Society of Chemistry

Three dimensional, macroporous hybrid of polyoxometalate and reduced graphene oxide with enhanced catalysis for stable and sensitive nonenzymatic detection of nitrite

RSC - Anal. Methods latest articles - Thu, 08/03/2017 - 03:48
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01586K, PaperGuangran Ma, Min Yang, Fugang Xu, Li Wang
In this study, polyoxometalate (POM) and graphene oxide (GO) were hydrothermally treated to form a novel three-dimensional (3D) macroporous hybrid 3D-mp-rGO-POM for nitrite sensing. Scanning electron microscopy, transmission electron microscopy,...
The content of this RSS Feed (c) The Royal Society of Chemistry

A novel three-dimensional DNA nanostructure used for thrombin detection

RSC - Anal. Methods latest articles - Wed, 08/02/2017 - 11:04
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01488K, PaperHuawei Shu, jinxin gu, he mei, yongbin yang, baoguang chen, ling huang, qun wang, xiaodong chen, dong li, Jimin Gao
In this paper, a label-free electrochemical aptasensor for detection of thrombin with high sensitivity was proposed. The thrombin-binding capture probe (CP) was designed to form thrombin/aptamer complex that could reduce...
The content of this RSS Feed (c) The Royal Society of Chemistry

Development of novel method for enrichment of unsubstituted naphthalene and phenanthrene from crude oils to compound-specific stable isotope analysis

RSC - Anal. Methods latest articles - Wed, 08/02/2017 - 07:43
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01257H, PaperYongxin Chen, Xilong Zhang, Jiang Chang, Suping Ma, Yinqing Wu, Yanqing Xia
A novel, effective and easy-to-operate method to enrich unsubstituted naphthalene and phenanthrene directly from crude oil was developed based on close-system pyrolysis. The pyrolysis at 500 [degree]C for 12 h...
The content of this RSS Feed (c) The Royal Society of Chemistry

A simple pre-column derivatization method for the determination of mancozeb technical (fungicide) by reverse phase HPLC-UV

RSC - Anal. Methods latest articles - Wed, 08/02/2017 - 05:42

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY00830A, PaperNarendra H. Petha, Rama S. Lokhande, Devender T. Seshadri, Raju[space]M. Patil, Tanaji S. Bhagat, Jitendra G. Patil
A simple and fast pre-column derivatization high performance liquid chromatographic method for the technical analysis of mancozeb was developed and validated in the present study.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry

Characterization of phenolic acids binding to thrombin using frontal affinity chromatography and molecular docking

RSC - Anal. Methods latest articles - Wed, 08/02/2017 - 04:39
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01433C, PaperYu-Xiu Yang, Su-Ying Li, Qian Zhang, Hua Chen, Zhi-Ning Xia, Feng-Qing Yang
As a serine protease, thrombin (THR) plays an important role in the coagulation cascade. In this study, a frontal affinity chromatography (FAC) method was developed for the characterization of interactions...
The content of this RSS Feed (c) The Royal Society of Chemistry

The basicity analysis of sintered ore using laser-induced breakdown spectroscopy (LIBS) combined with random forests regression(RFR)

RSC - Anal. Methods latest articles - Wed, 08/02/2017 - 04:39
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01389B, PaperGuang Yang, Xu Han, Chenghao Wang, Yu Ding, Ke Liu, Di Tian, Li Yao
The basicity of sintered ore, which is related to the melting point of the sinter, is vital to ore mining and blast furnace smelting. Laser-induced breakdown spectroscopy (LIBS) with random...
The content of this RSS Feed (c) The Royal Society of Chemistry

Modified QuEChERS as a novel sample preparation method for analysis of N-nitrosodiethanolamine in shampoo by high performance liquid chromatography

RSC - Anal. Methods latest articles - Wed, 08/02/2017 - 04:39
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01378G, PaperGhazaleh Abedi, Zahra Talebpour
This study sought to develop a novel method for the trace analysis of N-nitrosodiethanolamine (NDELA) in shampoos inspired by a Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) extraction, followed...
The content of this RSS Feed (c) The Royal Society of Chemistry

Pages