Spectrophotometric and conductimetric determination of the critical micellar concentration of sodium dodecyl sulfate and cetyltrimethylammonium bromide micellar systems modified by alcohols and salts

被引:67
作者
Benito, I [1 ]
Garcia, MA [1 ]
Monge, C [1 ]
Saz, JM [1 ]
Marina, ML [1 ]
机构
[1] UNIV ALCALA DE HENARES, FAC CIENCIAS, DEPT QUIM ANALIT, ALCALA DE HENARES 28871, MADRID, SPAIN
关键词
surfactants; micelles; micellar systems; sodium dodecyl sulfate (SDS); cetyltrimethylammonium bromide (STAB); critical micellar concentration;
D O I
10.1016/S0927-7757(97)00014-9
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Determination of the critical micellar concentration of some modified micellar systems used as mobile phases in micellar liquid chromatography and micellar electrokinetic chromatography has been achieved. Sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB) were used as surfactants, n-propanol and n-butanol as modifiers, and phosphate buffer was included in some of the micellar systems. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:221 / 224
页数:4
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