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Electrophoresis
Article . 2013
License: Wiley Online Library User Agreement
Data sources: Crossref
Electrophoresis
Article . 2013
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Electrolyte system strategies for anionic isotachophoresis with electrospray‐ionization mass‐spectrometric detection. 1. Regular isotachophoresis and free‐acid isotachophoresis

Authors: Malá, Z. (Zdeňka); Gebauer, P. (Petr); Boček, P. (Petr);

Electrolyte system strategies for anionic isotachophoresis with electrospray‐ionization mass‐spectrometric detection. 1. Regular isotachophoresis and free‐acid isotachophoresis

Abstract

The subject of this work is the definition of a simple model based on general ITP theory that allows describing and predicting the behavior of ITP systems compatible with ESI‐MS detection. The model is exemplified by anionic ITP of weak acids that represent an interesting potential application field of ITP‐ESI‐MS. Suitable ESI‐compatible electrolyte systems of very simple composition are proposed including a special free‐acid ITP arrangement. The properties of these systems are discussed using illustrative diagrams of their stacking windows. The use of anionic ITP‐ESI‐MS in negative‐ion ESI mode is reported for the first time and its suitability for sensitive trace analysis is demonstrated. The presented ITP‐ESI‐MS application example comprises a free‐acid ITP system formed of formic and propionic acids and direct injection analysis of ibuprofen and diclofenac in waters with quantitation limits of the order 10−10 M.

Country
Czech Republic
Related Organizations
Subjects by Vocabulary

Microsoft Academic Graph classification: Free acid Electrospray ionization Stacking Electrolyte Chromatography Chemistry Mass spectrometric Isotachophoresis Trace analysis

Keywords

Anions, Spectrometry, Mass, Electrospray Ionization, Diclofenac, isotachophoresis, Clinical Biochemistry, Ibuprofen, Biochemistry, Analytical Chemistry, Electrolytes, Rivers, Limit of Detection, Isotachophoresis, Drinking Water, Anti-Inflammatory Agents, Non-Steroidal, Electrophoresis, Capillary, Analgesics, Non-Narcotic, water analysis, ESI-MS detection, Acids

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  • citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    12
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
12
Average
Average
Average
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