Capillary electrophoretic determination of inorganic selenium species

被引：17
|
作者：
Dzierzgowska, M [1 ]
Pyrzyñska, K [1 ]
Pobozy, E [1 ]
机构：
[1] Warsaw Univ, Dept Chem, PL-02093 Warsaw, Poland
来源：
JOURNAL OF CHROMATOGRAPHY A | 2003年 / 984卷 / 02期
关键词：
water analysis; selenium anions;
D O I：
10.1016/S0021-9673(02)01846-0
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
The performance of pyromellitic electrolyte for capillary zone electrophoresis of inorganic selenium species in the presence of selected common anions with indirect UV detection was investigated. The separation was achieved with pyromellitic electrolyte at pH 8.8 and hexamethonium hydroxide as the electroosrriotic flow modifier. Obtained detection limits of 0.17 mug ml(-1) for Se(VI) and 0.29 mug ml(-1) for Se(IV) were improved by a factor of 5-7 in comparison with chromate electrolyte, which has been mainly employed for selenium analysis. Good resolution for nitrate-Se(VI) peaks were obtained. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：291 / 295
页数：5
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