摘要
以5mmol／L铬酸钠-0．5mmol／L十四烷基三甲基溴化铵为背景电解质溶液，研究了33种阴离子的有效迁移率与极限当量电导及正构羧酸的有效迁移率与碳数的关系。结果表明阴离子的有效迁移率随极限当量电导的增加而增加；C2～C7的正构—元羧酸和C2～C10的正构二元羧酸同系物的有效迁移率的倒数与碳数呈正比，线性相关系数大于0．997。
The dependence of effective mobility on ionic equivalent conductivity for 33 anions was studiedusing 5 mmol/L sodium chromate and 0. 5 mmol/L tetradecyltrimethylammonium bromide (TTAB) as background electrolyte. The relationship was developed between effective mobility off and carbon number ofmono-carboxylic acid and dicarboxylic acid homologues. The results showed that the effective mobility of anions increased with increasing ionic equivalent conductivity. The l/mff was linearly related to the carbon number of mono-carboxylic acid (C:--C,) and dicarboxylic acid (CZ-C,,). The correlation coefficient was more than0. 997.
出处
《色谱》
CAS
CSCD
北大核心
1999年第4期332-334,共3页
Chinese Journal of Chromatography
基金
浙江省自然科学基金
关键词
毛细管电泳
阴离子
迁移行为
正构羧酸
羧酸
capillary electrophoresis
anion
migration behavior
n-carboxylic acid
