期刊
ANALYTICA CHIMICA ACTA
卷 507, 期 2, 页码 185-190出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2003.11.028
关键词
capillary electrophoresis; polymer coating; glutaraldehyde; derivatization; sulfite; developers
A new capillary electrophoretic (CE) method was developed for the rapid and simple determination of glutaraldehyde in photographic developing solutions. The proposed system is based on the selective pre-capillary derivatization of glutaraldehyde with sulfite and CE determination of anionic glutaraldehyde-bisulfite adduct formed. Since the developing solutions contain large amounts of sulfite ions, the only procedure required for derivatization is a dilution of the sample with carrier electrolyte. For separations of sulfite, acetate, glutaraldehyde-bisulfite and hydroquinone sulfonate anions, capillaries coated with poly(diallyldimethylammonium chloride) prior to analysis were used. Separation of four anions was accomplished in less than 3 min in 5 mmol l(-1) p-hydroxybenzoate-imidazole (p-HB) electrolyte at pH 6.0 using indirect UV detection at 254 nm. The optimal conditions for the derivatization reaction were established by varying concentration of sulfite, pH and reaction time. The recovery tests established for photographic developer samples were within the range 94.0-98.4%. (C) 2003 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据