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Potentiometry is a new detection method for liquid chromatography (LC) and capillary electrophoresis (CE). The principle behind this method is familiar to chromatographers because the signals depend on the partitioning tendency of analytes over the sensor coating and the eluent. This partitioning provokes a change in the surface potential and the detection of these changes can be classified as "potentiometric". A conversion algorithm is needed to convert the generated signals to concentration-related..
Nov 1, 2007
By:
Luc Nagels, Dr Hugo Bohets, Joseph Everaert, Bert Vissers, Justyna Sekula, Dr Marcus Brewster, Dr Koen Vanhoutte, Dr Nico Vervoort, Dr Karl Peeters, Kamilla Sadowska, Dominica Kozlowska, Dr Maria Eugenia Mongé
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Potentiometry is a new detection method for liquid chromatography (LC) and capillary electrophoresis (CE). The principle behind this method is familiar to chromatographers because the signals depend on the partitioning tendency of analytes over the sensor coating and the eluent. This partitioning provokes a change in the surface potential and the detection of these changes can be classified as "potentiometric". A conversion algorithm is needed to convert the generated signals to concentration-related tracings (chromatograms).  Gas chromatography (GC) is one of the most widely used analytical techniques for the analysis of chemical warfare agents (CWAs). The complexity of the GC equipment varies from standard GC configurations for breakthrough measurements of gas masks to trace-level analysis in biomedical samples. This article gives an overview of the GC configurations that are commonly used to analyse these compounds in different applications.
Apr 1, 2007
By:
Henk C. Trap, Marcel van der Schans
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The complexity of the systems that are used vary from standard GC configurations to assess the effectiveness of protective clothing to trace analysis of biomedical samples with complex GC configuration. Nov 1, 2006
By:
Sjaak de Koning, Hans-Gerd Janssen, Udo A. Th. Brinkman
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Nov 1, 2005
By:
Z. Parsi, T. Górecki, J. Poerschmann
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Conventional pyrolysis can cause defunctionalization of polar structural moieties carrying functional groups, which leads to biased results. by Frantisek Svec
Jan 1, 2005
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In this article, the author describes the development of a simple enzymatic reactor, which also functions as a microdevice that combines both preconcentration and enzymatic digestion in the nano-electrospray emitter, and its interfacing with a mass spectrometer. by Masahiko Shimmo, Tuulia HyӞtylӞinen, Minna Kallio, Piia Anttila and Marja-Liisa Riekkola
Dec 1, 2004
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The authors provide suggestions for the sample pretreatment and analysis of aerosol particles including the use of on-line SFE–LC–GC–MS, GCXGC and LC–MS. Although each technique has its merits, the novel multidimensional systems and those integrating sample pretreatment with the final analysis proved to be valuable tools in aerosol analysis. by Elke Clynen and Liliane Schoofs
Oct 1, 2004
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The guest authors describe the use of LC–MS for the analysis of peptides. They deal with peptide extraction, peptidomic analysis in organisms with and without genomic databases, identification of peptides with conserved N- and C- terminal sequences, and in situ MALDI-TOF peptide profiling. Peter Schoenmakers, Philip Marriott and Jan Beens
Jun 1, 2003
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The authors describe recent discussions on the correct use of terminology in the emerging field of comprehensive multidimensional chromatography. by Bart Devreese and Jozef Van Beeumen
Oct 1, 2002
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The authors describe how they have implemented a nanoflow liquid chromatography approach to combine high throughput with the sensitivity necessary to allow protein identification from 2D-PAGE separations.
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