화학공학소재연구정보센터
Journal of the Korean Industrial and Engineering Chemistry, Vol.1, No.2, 249-255, December, 1990
음이온성 및 비이온성 계면활성제 혼합물의 Thin Layer Chromatography에 의한 분리
Separation of Mixtures for Anionic and Nonionic Surfactants by Thin Layer Chromatography
초록
Thin layer chromatography를 사용하여 음이온성 및 비이온성 계면활성제의 신속한 분리 및 정성분석에 필요한 용매조건들을 조사하였다. 알킬사슬의 종류와 alkylene oxide의 분포에 따른 분리특성을 이용하여 polyoxyalkylene 계 비이온성 계면활성제들을 간단히 정성 분석 할 수 있었으며, densitometer를 사용하여 polyoxyethylenated nonyl phenol의 ethylene oxide(EO)에 따른 분포를 쉽게 비교할 수 있었다. 일련의 음이온성 계면활성제들을 Rf 값과 발색되는 색으로 정성분석하였으며, 음이온성 및 비이온성 계면활성제 혼합물을 각각 분리하였다. 지방산계 계면활성제를 diester, monoester 및 미반응된 polyethylene glycol의 세 부분으로 농축 분리하여 그 혼합비율을 구하였다. 이상의 모든 실험은 전개용매를 80mm정도 전개시킨 상태에서 이루어졌고 분리에 걸린 시간은 13-20분 정도였다.
The conditions for separation and identification of anionic and nonionic surfactants by thin layer chromatography were investigated. Polyoxy alkylene-type nonionic surfactants were identified by the distribution of alkyl chain and alkylene oxide. Various polyoxyethylenated nonyl phenols were easily distinguished by densitometer. Some anionic surfactants were identified by Rf and color, and the mixtures of anionic and nonionic surfactants were separated. Polyoxyethylenated fatty acid was separated into three parts of diester, monoester and polyethylene glycol, respectively, and the mixed ratio was determined by densitomer. All the experiments were carried out in 13-20 minutes, and the length of run was 80mm.
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