Use of weak ion association in the separation of inorganic anions by capillary electrophoresis with specific application to simultaneous-trace determination of bromate and iodate in drinking water

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dc.creatorMbuna, Julius
dc.creatorNgassapa, F.N
dc.creatorShoji, Motomizu
dc.date2016-07-14T20:47:53Z
dc.date2016-07-14T20:47:53Z
dc.date2008-03
dc.date.accessioned2018-03-27T08:54:53Z
dc.date.available2018-03-27T08:54:53Z
dc.descriptionFull text can be accessed at http://www.ajol.info/index.php/bcse/article/view/61318/49484
dc.descriptionIn this work weak ion association was used to effect selectivity and detection of inorganic anions with environmental or health significance by capillary electropheresis, CE. Tetrabutylammonium ion was used as a pairing anion to separate mixtures containing closely or co-migrating inorganic anions at pHs 3.8 and pH 7. Despite taking a longer analysis time, better resolution is achieved at pH 7 than 3.8. Trace level of bromate and iodate present in drinking water were determined after online pre-concentration by field enhanced sample injection (FESI) technique. Consequently an internal standard (SCN-) was employed, which entailed the use of tetrabutylammonium ion as a pairing cation to resolve the internal standard from a co-migrating broad peak. The LODs (S/N = 3) were 7.8 x 10-10 M (10 ppb) and 1.2 x 10-9 M (0.21 ppb) for bromate and iodate, respectively. The method was subsequently used to determine bromate and iodate levels in drinking water.
dc.identifierMbuna, J., Ngassapa, F.N. and Motomizu, S., 2008. Use of weak ion association in the separation of inorganic anions by capillary electrophoresis with specific application to simultaneous-trace determination of bromate and iodate in drinking water. Bulletin of the Chemical Society of Ethiopia, 22(1).
dc.identifierhttp://hdl.handle.net/20.500.11810/3195
dc.identifier10.4314/bcse.v22i1.61318 ยท Source: DOAJ
dc.identifier.urihttp://hdl.handle.net/20.500.11810/3195
dc.languageen
dc.subjectWeak ion association
dc.subjectSelectivity
dc.subjectCapillary electrophoresis
dc.subjectTetrabutylammonium ion
dc.subjectBromate
dc.subjectIodate
dc.subjectDrinking water
dc.titleUse of weak ion association in the separation of inorganic anions by capillary electrophoresis with specific application to simultaneous-trace determination of bromate and iodate in drinking water
dc.typeJournal Article

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