Analytical Chemistry News

Cell Measurement by Flow Cytometry Chip with Twisted Micro Sheath Flow Channel

Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00886D, PaperTOMOMI SATO, RYO MIYAKE
We are developing an integrated flow cytometry chip, which comprises a pre-treatment part and a sheath flow-forming part with a twisted microchannel structure, for continuous monitoring of bacteria in drinking...
The content of this RSS Feed (c) The Royal Society of Chemistry

The Compositional Characterization and Painting Technique of Chinese Red and White Porcelain by EDXRF and SR-[small mu ]XRF Mapping Analysis

Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00860K, Paperrui wen, yun zhang, Dong Wang, Lihua Wang
Red and white porcelain was representative of high quality Chinese technology in a historical context. Red and white porcelain sherds excavated from the Mansion of Prince Qin were selected to...
The content of this RSS Feed (c) The Royal Society of Chemistry

Calibration of the mobility scale in ion mobility spectrometry: the use of 2,4-lutidine as a chemical standard, the two-standards calibration method and the incorrect use of drift tube temperature for calibration

RSC - Anal. Methods latest articles - Wed, 06/21/2017 - 09:20
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01126A, PaperRoberto Fernandez-Maestre
Ion mobility spectrometry (IMS) is an analytical technique that separates ions in the gas-phase under the influence of an electric field according to their size to charge ratio. We used...
The content of this RSS Feed (c) The Royal Society of Chemistry

A novel one-step colorimetric assay for highly sensitive detection of glucose in serum based on MnO2 nanosheets

RSC - Anal. Methods latest articles - Wed, 06/21/2017 - 09:20
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01331K, PaperZhongming Huang, Jie Yang, Lin Zhang, Xin Geng, Jia Ge, Ya-Lei Hu, Zhaohui Li
Glucose provides essential function towards metabolism process in biological systems and has close relationships with diabetes or hypoglycemia. In this work, a very simple, one-step colorimetric method based on MnO2...
The content of this RSS Feed (c) The Royal Society of Chemistry

Application of Solvent Demulsification Dispersive Liquid-Liquid Microextraction for Nicotine and Cotinine Measurement in Human Urine Combined with Hydrophilic Interaction Chromatography Tandem Mass Spectrometry

RSC - Anal. Methods latest articles - Wed, 06/21/2017 - 08:19
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00840F, PaperQian Wang, Yue Yuan, Mingxin Li, Yaqian Chen, Yi Man, Mechel Dard, Xiaoli Zou
A method for the determination of urinary nicotine and cotinine by solvent demulsification-dispersive liquid-liquid microextraction (SD-DLLME) combined with hydrophilic interaction chromatography tandem mass spectrometry (HILIC-MS/MS) was established. The chromatographic separation...
The content of this RSS Feed (c) The Royal Society of Chemistry

Quantitative analysis of 3-Hydroxybenzo[a]pyrene and (+)-anti-Benzo[a]pyrene-diolepoxide-DNA adducts in Benzo[a]pyrene induced mice by the protection of Lemongrass essential oil

RSC - Anal. Methods latest articles - Wed, 06/21/2017 - 08:19
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00809K, PaperNan Chang, Henggui Xu, Nan Ma, Yamin Ma, Mengxiong Fang, Jing Cao, Fasheng Li
Abstract: Benzo[a]pyrene (B[a]P) is a well-known carcinogen present in the environment. In this paper, we developed a method for determining of the B[a]P intermediate metabolites, 3-hydroxybenzo(a)pyrene(3-OHB[a]P) and (+)-anti-benzo(a)pyrene diolepoxide-DNA adducts...
The content of this RSS Feed (c) The Royal Society of Chemistry

Gold Nanoparticles-Modified Indium Tin Oxide Microelectrode for In-channel Amperometric Detection in Dual-Channel Microchip Electrophoresis

RSC - Anal. Methods latest articles - Tue, 06/20/2017 - 10:08
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01008G, PaperGangzhi Zhu, Qianhui Song, Wenfang Liu, Xingxing Yan, Jian Xiao, Chuanpin Chen
A modified indium tin oxide (ITO) microelectrode detector integrated with a dual-channel polydimethylsiloxane (PDMS) microchip is proposed for in-channel amperometric detection in microchip electrophoresis (ME). The gold nanoparticles (GNPs)-modified ITO-coated...
The content of this RSS Feed (c) The Royal Society of Chemistry

Preparation and evaluation of [small beta]-cyclodextrin functionized periodic mesoporous organosilica open tubular capillary columns

RSC - Anal. Methods latest articles - Tue, 06/20/2017 - 09:08
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01155E, Paperdongqiang guo, mingxia liu, Shangwei Zhong, yalei Dong, Xiangjun Li
This study describes the preparation and electrochromatographic application of a chiral [small beta]-cyclodextrin functionized periodic mesoporous organosilica bonded open tubular capillary column. The stationary phase([small beta]-cyclodextrin functionized period mesoporous organosilica, CD-PMO) was...
The content of this RSS Feed (c) The Royal Society of Chemistry

Recent build outs in electroanalytical biosensors based on carbon-nanomaterial modified screen printed electrode platforms

RSC - Anal. Methods latest articles - Mon, 06/19/2017 - 11:58

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY01276D, Critical ReviewNandita Jaiswal, Ida Tiwari
The incorporation of carbon-based nanomaterials in screen-printed electrode sensors has overtaken traditional techniques in biological and environmental sample analysis where immediate on-site monitoring is required. Our review focuses on 1D and 2D biosensor materials.
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

FTIR as a rapid tool for monitoring molecular weight distribution during enzymatic protein hydrolysis of food processing by-products.

RSC - Anal. Methods latest articles - Mon, 06/19/2017 - 10:57
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00865A, PaperSileshi Wubshet, Ingrid Mage, Ulrike Bocker, Diana Lindberg, Svein Halvor Knutsen, Anne Rieder, Diego Airado-Rodriguez, Nils Kristian Afseth
Enzymatic protein hydrolysis of food processing by-products is a well-recognized strategy of producing peptide-rich formulations of added value. The biochemical complexity of this process poses a significant challenge in the...
The content of this RSS Feed (c) The Royal Society of Chemistry

Rapid Pre-filtering of Amphetamine and Derivatives by Direct Analysis in Real Time (DART) - Differential Mobility Spectrometry (DMS)

RSC - Anal. Methods latest articles - Mon, 06/19/2017 - 10:57
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00892A, PaperIfeoluwa Ayodeji, Timothy Vazquez, Ronelle Bailey, Theresa Evans-Nguyen
The synthesis of 'designer drugs' and derivatives has recently proliferated in the illicit drug market. For forensic drug analysis, conventional sample preparation and chromatographic separation techniques may be laborious and...
The content of this RSS Feed (c) The Royal Society of Chemistry

Discriminating Forchlorfenuron-treated Kiwifruits Using Portable Spectrometer and Vis/NIR Diffuse Transmittance Spectroscopy Technology

RSC - Anal. Methods latest articles - Mon, 06/19/2017 - 10:57
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00832E, PaperDayang Liu, Qianqian Li, Weiqiang Li, Biao Yang, Wenchuan Guo
To explore the feasibility of low-cost miniaturized spectrometers in discriminating forchlorfenuron treated kiwifruits, a visible and near infrared (Vis/NIR) diffuse transmittance spectroscopy system was constructed by a miniaturized charge coupled...
The content of this RSS Feed (c) The Royal Society of Chemistry

A simple and green ultrasonic-assisted liquid-liquid microextraction technique based on deep eutectic solvents for the HPLC analysis of sesamol in sesame oils

RSC - Anal. Methods latest articles - Mon, 06/19/2017 - 09:57
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01033H, PaperWei Liu, Kangdi Zhang, Yaqiong Qin, Jingjing Yu
Sesamol is the key natural antioxidant in sesame oils, which can prevent the propagation of lipid peroxidation. A simple ultrasonic-assisted liquid-liquid microextraction (UALLME) technique based on deep eutectic solvents (DESs)...
The content of this RSS Feed (c) The Royal Society of Chemistry

Novel method of nicotine quantification in electronic cigarette liquids and aerosols

RSC - Anal. Methods latest articles - Mon, 06/19/2017 - 09:57
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00501F, PaperMumiye Ogunwale, Yizheng Chen, Whitney Theis, Michael H Nantz, Daniel Conklin, Xiaoan Fu
The electronic cigarette (e-cigarette) has emerged as popular electronic nicotine delivery devices (ENDs). However, the general safety and validity of e-cigarettes for nicotine delivery efficacy are still not well understood....
The content of this RSS Feed (c) The Royal Society of Chemistry

Quantitation of Fentanyl Analogs in Dried Blood Spots by Flow-Through Desorption Coupled to Online Solid Phase Extraction Tandem Mass Spectrometry

RSC - Anal. Methods latest articles - Fri, 06/16/2017 - 09:20
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00532F, Technical NoteRebecca L Shaner, Nicholas D Schulze, Craig Seymour, Elizabeth I. Hamelin, Jerry D Thomas, Rudolph Johnson
An automated dried blood spot (DBS) elution coupled with solid phase extraction and tandem mass spectrometric analysis for multiple fentanyl analogs was developed and assessed. This method confirms human exposures...
The content of this RSS Feed (c) The Royal Society of Chemistry

Competitive electrochemical biosensing of biotin using cadmium-modified titanium phosphate nanoparticles and 8-channel screen-printed disposable electrodes

RSC - Anal. Methods latest articles - Fri, 06/16/2017 - 07:20
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00947J, PaperDaniel Martin-Yerga, Javier Carrasco-Rodriguez, Francisco Javier Garcia Alonso, Agustin Costa-Garcia
In this work, a method for the detection of biotin was developed using a competitive electrochemical biosensor and cadmium-modified titanium phosphate nanoparticles (CdTiPNPs) as detection label. The electrochemical behaviour of...
The content of this RSS Feed (c) The Royal Society of Chemistry

Simultaneous quantification of dopamine, acetaminophen and tyrosine at carbon paste electrode modified with porphyrin and clay

RSC - Anal. Methods latest articles - Fri, 06/16/2017 - 07:20
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01173C, PaperJustin Claude Kemmegne-mbouguen, Emmanuel Ngameni
A Cameroonian smectite clay collected in a deposit on Sabga hill (West Cameroon, Central Africa- denominated as Sa) and a metal free Meso-tetra(4-carboxyl phenyl) porphyrin (shortened as TCPP) were used...
The content of this RSS Feed (c) The Royal Society of Chemistry

Fabrication of TiO2 and clay nanoparticles composite electrode as a sensor

RSC - Anal. Methods latest articles - Fri, 06/16/2017 - 07:20
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01068K, PaperShikandar D Bukkitgar, Nagaraj P Shetti
In the present work, a simple, selective, and sensitive electrochemical method for the determination of atrovostatin was proposed based on a composite electrode. The electrode was prepared using nano clay...
The content of this RSS Feed (c) The Royal Society of Chemistry

Development of a HPLC-DAD method combined with multicomponent chemometrics and antioxidant capacity to monitor the quality consistency of Compound Bismuth Aluminate Tablets by comprehensive quantified fingerprint method

RSC - Anal. Methods latest articles - Thu, 06/15/2017 - 09:06
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00916J, PaperFangliang Yang, Guoxiang Sun, Jiao Chen
A high performance liquid chromatography (HPLC) coupled with diode array detector method was developed to monitor the quality consistency of a classical compound preparation, Compound Bismuth Aluminate tablet. Characteristic fingerprints...
The content of this RSS Feed (c) The Royal Society of Chemistry

Easy ambient sonic-spray ionization mass spectrometry for tissue imaging

RSC - Anal. Methods latest articles - Thu, 06/15/2017 - 09:06

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY00858A, PaperRosana M. Alberici, Pedro H. Vendramini, Marcos N. Eberlin
Easy ambient sonic-spray ionization mass spectrometry (EASI-MS) can be applied for tissue imaging when the application of high voltage is impractical or undesirable.
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

Pages