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2,373 Newest Publications in analytical and bioanalytical chemistry

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Copper and tin isotopic analysis of ancient bronzes for archaeological investigation: development and validation of a suitable analytical methodology

25-Nov-2012 | Eleonora Balliana, Maite Aramendía, Martin Resano, Carlo Barbante, Frank Vanhaecke, Analytical and Bioanalytical Chemistry, 2012

Although in many cases Pb isotopic analysis can be relied on for provenance determination of ancient bronzes, sometimes the use of “non-traditional” isotopic systems, such as those of Cu and Sn, is required. The work reported on in this paper aimed at revising the methodology for Cu and Sn ...

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Identification of in vitro metabolites of the novel anti-tumor thiosemicarbazone, DpC, using ultra-high performance liquid chromatography–quadrupole-time-of-flight mass spectrometry

25-Nov-2012 | Ján Stariat, Petra Kovaříková, Radim Kučera, Jiří Klimeš, Danuta S. Kalinowski, Des R. Richardson, Raimo A. Ketola, Analytical and Bioanalytical Chemistry, 2012

Di-2-pyridylketone-4-cyclohexyl-4-methyl-3-thiosemicarbazone (DpC) is a promising analogue of the dipyridyl thiosemicarbazone class currently under development as a potential anti-cancer drug. In fact, this class of agents shows markedly greater anti-tumor activity and selectivity than the ...

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Identification of PET radiometabolites by cytochrome P450, UHPLC/Q-ToF-MS and fast radio-LC: applied to the PET radioligands [11C]flumazenil, [18F]FE-PE2I, and [11C]PBR28

25-Nov-2012 | Nahid Amini, Ryuji Nakao, Magnus Schou, Christer Halldin, Analytical and Bioanalytical Chemistry, 2012

A general method is presented for the identification of radiometabolites in plasma of human and monkey subjects after administration of positron emission tomography (PET) radioligands. The radiometabolites are first produced in vitro, using liver microsomes, subsequently separated using fast ...

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Voltammetric platform for detection of 2,4,6-trinitrotoluene based on a molecularly imprinted polymer

25-Nov-2012 | M. Pesavento, G. D’Agostino, G. Alberti, R. Biesuz, D. Merli, Analytical and Bioanalytical Chemistry, 2012

New methods for determination of explosive substances as, for example, 2,4,6-trinitrotoluene (TNT), in a rapid way and at low cost are highly required. An electrochemical platform has been here developed with good characteristics of low dimension, fast response, low cost, and high selectivity. It ...

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Rapid phytochemical analysis of birch (Betula) and poplar (Populus) foliage by near-infrared reflectance spectroscopy

25-Nov-2012 | Kennedy F. Rubert-Nason, Liza M. Holeski, John J. Couture, Adam Gusse, Daniel J. Undersander, Richard L. Lindroth, Analytical and Bioanalytical Chemistry, 2012

Poplar (Populus) and birch (Betula) species are widely distributed throughout the northern hemisphere, where they are foundation species in forest ecosystems and serve as important sources of pulpwood. The ecology of these species is strongly linked to their foliar chemistry, creating demand for ...

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On-line product analysis of pine wood pyrolysis using synchrotron vacuum ultraviolet photoionization mass spectrometry

25-Nov-2012 | Junjie Weng, Liangyuan Jia, Shaobo Sun, Yu Wang, Xiaofeng Tang, Zhongyue Zhou, Fei Qi, Analytical and Bioanalytical Chemistry, 2012

The pyrolysis process of pine wood, a promising biofuel feedstock, has been studied with tunable synchrotron vacuum ultraviolet photoionization mass spectrometry. The mass spectra at different photon energies and temperatures as well as time-dependent profiles of several selected species during ...

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Strategy for quantifying trace levels of BMAA in cyanobacteria by LC/MS/MS

25-Nov-2012 | Liying Jiang, Eric Johnston, K. Magnus Åberg, Ulrika Nilsson, Leopold L. Ilag, Analytical and Bioanalytical Chemistry, 2012

The cyanobacterial neurotoxin β-N-methylamino-l-alanine (BMAA) is an amino acid that is putatively associated with the pathology of amyotrophic lateral sclerosis/Parkinsonism–dementia complex (ALS-PDC) disease. It raises serious health risk concerns since cyanobacteria are ubiquitous thus making ...

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Tuning of Ti-doped mesoporous silica for highly efficient enrichment of phosphopeptides in human placenta mitochondria

25-Nov-2012 | Fuqiang Wang, Zhonghua Shi, Fan Hu, Zhengrong Xia, Ling Wang, Analytical and Bioanalytical Chemistry, 2012

Extraction of phosphopeptides from rather complex biological samples has been a tough issue for deep and comprehensive investigation into phosphoproteomes. In this paper, we present a series of Ti-doped mesoporous silica (Ti-MPS) materials with tunable composition and controllable morphology for ...

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Thin-layer chromatography enantioseparations on chiral stationary phases: a review

19-Nov-2012 | Massimo Del Bubba, Leonardo Checchini, Luciano Lepri, Analytical and Bioanalytical Chemistry, 2012

The current state of chiral separations by thin-layer chromatography using chiral stationary phases is reviewed. Both stationary phases essentially constituted by the chiral selector and those obtained by the impregnation of achiral plates with appropriate chiral selectors are described. ...

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Fluorescence assay for protein post-translational tyrosine sulfation

19-Nov-2012 | Bo-Han Chen, Chen-Chu Wang, Lu-Yi Lu, Kuo-Sheng Hung, Yuh-Shyong Yang, Analytical and Bioanalytical Chemistry, 2012

We developed a fluorescent assay to conveniently determine the kinetics of protein sulfation, which is essential for understanding interface between protein sulfation and protein–protein interactions. Tyrosylprotein sulfotransferase (TPST) catalyzes protein sulfation using 3′-phosphate ...

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