On-line capillary isotachophoresisacapillary zone electrophoresis analysis of bromate in drinking waters in an automated analyzer with coupled columns and photometric detection

On-line capillary isotachophoresisacapillary zone electrophoresis analysis of bromate in drinking waters in an automated analyzer with coupled columns and photometric detection

A new, sensitive, and robust analytical method based on capillary zone electrophoresis with on-line capillary isotachophoresis sample pretreatment (ITPaCZE) using a column-coupling (CC) arrangement of automated capillary electrophoretic analyzer was developed for determination of bromate in differen...

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Veröffentlicht in:Journal of Chromatography A 2012-12, Vol.1267, p.252-258
Hauptverfasser: Marak, Jozef, StaAova, Andrea, Vavakova, Veronika, Hrenakova, Martina, Kaniansky, Dusan
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container_title Journal of Chromatography A
container_volume 1267
creator Marak, Jozef
StaAova, Andrea
Vavakova, Veronika
Hrenakova, Martina
Kaniansky, Dusan
description A new, sensitive, and robust analytical method based on capillary zone electrophoresis with on-line capillary isotachophoresis sample pretreatment (ITPaCZE) using a column-coupling (CC) arrangement of automated capillary electrophoretic analyzer was developed for determination of bromate in different type of drinking water samples. Both columns were provided with contact-less conductivity detectors and in CZE step UV detection at 200 nm wavelength was used. Electroosmotic flow of the buffer solutions was suppressed with the addition of 0.1% or 0.05% (m/v) methylhydroxyethylcellulose into the leading and terminating electrolyte, respectively. Hydrodynamic and electroosmotic flows of the buffer solutions were successfully suppressed and therefore, only the electrophoretic transport of ions was significant.
doi_str_mv 10.1016/j.chroma.2012.07.075
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title On-line capillary isotachophoresisacapillary zone electrophoresis analysis of bromate in drinking waters in an automated analyzer with coupled columns and photometric detection
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