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2,373 Newest Publications in analytical and bioanalytical chemistry

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Focus on quantum dots as potential fluorescent probes for monitoring food toxicants and foodborne pathogens

17-Apr-2010 | A. C. Vinayaka, M. S. Thakur, Analytical and Bioanalytical Chemistry, 2010

Water-soluble quantum dots (QDs) are fluorescent semiconductor nanoparticles with narrow, very specific, stable emission spectra. Therefore, the bioconjugation of these QDs for biological fluorescent labeling may be of interest due to their unique physical and optical properties as compared to ...

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Validation of ELISA screening and LC–MS/MS confirmation methods for cocaine in hair after simple extraction

16-Apr-2010 | P. López, S. Martello, A. M. Bermejo, Eleonora De Vincenzi, M. J. Tabernero, M. Chiarotti, Analytical and Bioanalytical Chemistry, 2010

This article describes an easy and innovative extraction procedure for cocaine and its primary metabolite, benzoylecgonine (BE), from hair consisting of sonication with H2O/0.1% formic acid for 4 h. The same extract was used for screening with an enzyme-linked immunoassay (ELISA) and confirmation ...

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Progress of diffraction enhanced imaging at the Beijing Synchrotron Radiation Facility

15-Apr-2010 | Kai Zhang, Peiping Zhu, Qingxi Yuan, Wanxia Huang, Xiaosong Liu, Youli Hong, Gun Gao, Xin Ge, Zhili Wang, Ziyu Wu, Analytical and Bioanalytical Chemistry, 2010

A simple framework that allows a new general diffraction enhanced imaging (DEI) equation to be derived is presented. This latter equation may explain all open problems associated with the equation introduced by Chapman and those not explained by the first DEI equation, such as the noise ...

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Probing of ascorbic acid by CdS/dendrimer nanocomposites: a spectroscopic investigation

15-Apr-2010 | Srabanti Ghosh, S. C. Bhattacharya, Abhijit Saha, Analytical and Bioanalytical Chemistry, 2010

The gamma irradiation method has provided a route for synthesis of highly water-soluble, good-quality luminescent CdS/dendrimer nanocomposites with amino- or carboxyl-terminated PAMAM dendrimer. An attempt has been made to probe ascorbic acid with the as-synthesized CdS/dendrimer nanocomposites ...

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Electrochemical simulation of oxidation processes involving nucleic acids monitored with electrospray ionization–mass spectrometry

15-Apr-2010 | Florian Pitterl, Jean-Pierre Chervet, Herbert Oberacher, Analytical and Bioanalytical Chemistry, 2010

Oxidation is commonly involved in the alteration of nucleic acids giving rise to diverse effects including mutation, cell death, malignancy, and aging. We demonstrate that electrochemistry represents an efficient and fast method to mimic oxidative modification of nucleic acids occurring in ...

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Evaluating the effects of estradiol on endothelial nitric oxide stimulated by erythrocyte-derived ATP using a microfluidic approach

14-Apr-2010 | Suzanne Letourneau, Luiza Hernandez, Andrea N. Faris, Dana M. Spence, Analytical and Bioanalytical Chemistry, 2010

Recently, estrogens have been reported to have protective effects against experimental autoimmune encephalomyelitis (EAE), a murine model of multiple sclerosis (MS). Although the molecular mechanism for such a protective effect is currently incomplete, we hypothesized that estradiol may reduce ...

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Absolute quantification of superoxide dismutase (SOD) using species-specific isotope dilution analysis

14-Apr-2010 | Christian L. Deitrich, Sandra Braukmann, Andrea Raab, Caroline Munro, Barbara Pioselli, Eva M. Krupp, Jane E. Thomas ..., Analytical and Bioanalytical Chemistry, 2010

Here we report for the first time the use of species-specific isotope dilution mass spectrometry for the absolute quantification of a metalloprotein using non-denaturing gel electrophoresis laser ablation inductively coupled plasma mass spectrometry (GE-LA-ICP-MS). The concept utilises the ...

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Determination of isoascorbic acid in fish tissue by hydrophilic interaction liquid chromatography–ultraviolet detection

14-Apr-2010 | Spyros Drivelos, Marilena E. Dasenaki, Nikolaos S. Thomaidis, Analytical and Bioanalytical Chemistry, 2010

A new hydrophilic interaction liquid chromatographic (HILIC) method for the simultaneous determination of isoascorbic (IAA) and ascorbic acid (AA) was developed. The separation of IAA and AA was studied in various HILIC stationary phases and the influence of the composition of the mobile phase, ...

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Mesoporous materials in sensing: morphology and functionality at the meso-interface

14-Apr-2010 | Brian J. Melde, Brandy J. Johnson, Analytical and Bioanalytical Chemistry, 2010

Mesoporous materials are finding increasing utility in sensing applications. These applications can benefit from a surface area that may exceed 1,000 m2 g−1 and fast diffusion of analytes through a porous structure. This article reviews recent developments in mesoporous materials-based sensing ...

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Photonics West – one of the largest conferences in the world

14-Apr-2010 | Gerald Steiner, Analytical and Bioanalytical Chemistry, 2010

Photonics West – one of the largest conferences in the world Content Type Journal Article Category Conference Highlights DOI 10.1007/s00216-010-3668-x Authors Gerald Steiner, Medizinische Fakultät Carl Gustav Carus Klinisches Sensoring und Monitoring Technische Universität Dresden ...

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