Determination of bromate ion in drinking water by capillary zone electrophoresis with direct photometric detection

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dc.contributor.authorTakayanagi, Toshio
dc.contributor.authorIshida, Makoto
dc.contributor.authorMbuna, Julius
dc.contributor.authorDriouich, Rim
dc.contributor.authorMotomizu, Shoji
dc.date.accessioned2016-07-14T20:47:57Z
dc.date.available2016-07-14T20:47:57Z
dc.date.issued2006-09
dc.descriptionFull text can be accessed at http://www.sciencedirect.com/science/article/pii/S0021967306012143en_US
dc.description.abstractBromate ion in drinking water was determined by capillary zone electrophoresis (CZE) with direct photometric detection. Bromate ion in the sample solution was introduced and concentrated into the capillary by electrokinetic injection for 50s at -10 kV. Electrophoretic separation was made at an applied voltage of -25 kV and bromate ion was detected at wavelength 193 nm, at which the baseline was stabilized with less UV-absorbing acidic phosphate buffer. Bromate ion was detected within 5 min in the electropherogram. By increasing the electric conductivity in the migrating solution with 10 mM Na2SO4, a limit of detection (LOD) of 9 x 10(-10)M (0.1 microg/L BrO3-) was achieved. The proposed method was applied to the analysis of tap water and river water samples, but bromate ion was not detected. Because the practical samples contain relatively large amount of foreign ionic substances, the tap water sample was diluted to avoid the matrix ions. Bromate ion added in a tap water at the concentration of 8 x 10(-8)M was quantitatively recovered by diluting it 1/10.en_US
dc.identifier.citationTakayanagi, T., Ishida, M., Mbuna, J., Driouich, R. and Motomizu, S., 2006. Determination of bromate ion in drinking water by capillary zone electrophoresis with direct photometric detection. Journal of chromatography A, 1128(1), pp.298-302.en_US
dc.identifier.doi10.1016/j.chroma.2006.06.056 · Source: PubMed
dc.identifier.urihttp://hdl.handle.net/20.500.11810/3196
dc.language.isoenen_US
dc.subjectBromate ionen_US
dc.subjectCapillary zone electrophoresisen_US
dc.subjectTransient isotachophoresisen_US
dc.titleDetermination of bromate ion in drinking water by capillary zone electrophoresis with direct photometric detectionen_US
dc.typeJournal Articleen_US
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