Free Access
Issue |
Analusis
Volume 27, Number 1, January/February 1999
Importance de la lipophilie en modélisation moléculaire
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Page(s) | 97 - 100 | |
Section | Original articles | |
DOI | https://doi.org/10.1051/analusis:1999102 |
Analusis 27, 97-100 (1999)
DOI: 10.1051/analusis:1999102
Department of Analytical Chemistry, Faculty of Chemistry, 41012 Seville, Spain
Key words: Phosphate determination / hypophosphite determination / pharmaceuticals / non-suppressed Cromatography / conductometric detection.
© EDP Sciences, Wiley-VCH 1999
DOI: 10.1051/analusis:1999102
Determination of phosphorous oxoanions in pharmaceuticals using non-suppressed ion chromatography
M.A. Bello and A.G. GonzálezDepartment of Analytical Chemistry, Faculty of Chemistry, 41012 Seville, Spain
Abstract
The separation and quantitation of phosphorous oxoanions have been investigated by non-suppressed ion chromatography (IC) with conductometric detection using a modified gluconate-borate
buffer as eluent. Hypophosphite being coeluted with the injection peak, its previous oxidation into phosphate is necessary. The method was applied to the determination of hypophosphite and
phosphate in several pharmaceuticals.
Key words: Phosphate determination / hypophosphite determination / pharmaceuticals / non-suppressed Cromatography / conductometric detection.
© EDP Sciences, Wiley-VCH 1999