摘要
In this paper, two anionic two phase systems, sodium dodecyl sulfate(SDS) dodecyl triethylammonium bromide(C 12 NE) and sodium perfluorooctanoate (SPFO) C 12 NE, were established. A two phase system with a clear interfacial boundary formed spontaneously under certain surfactant concentrations and molar ratios, respectively for the above two mixtures. Phase separation conditions and their properties were studied. Extractions of dyes and porphyrin compounds were performed. The results show that hydrophobic molecules are easily extracted into the surfactant rich phase of SPFO C 12 NE or into the “aqueous phase” of SDS C 12 NE. Positively charged porphyrins are extracted with higher extraction efficiencies than negatively charged porphyrins. The extraction results for charged porphyrins are opposite to those extracted with cationic two phase of C 12 NE SDS mixture, indicating that anionic two phase systems are complementary to the cationic two phase systems.
In this paper, two anionic two phase systems, sodium dodecyl sulfate(SDS) dodecyl triethylammonium bromide(C 12 NE) and sodium perfluorooctanoate (SPFO) C 12 NE, were established. A two phase system with a clear interfacial boundary formed spontaneously under certain surfactant concentrations and molar ratios, respectively for the above two mixtures. Phase separation conditions and their properties were studied. Extractions of dyes and porphyrin compounds were performed. The results show that hydrophobic molecules are easily extracted into the surfactant rich phase of SPFO C 12 NE or into the “aqueous phase” of SDS C 12 NE. Positively charged porphyrins are extracted with higher extraction efficiencies than negatively charged porphyrins. The extraction results for charged porphyrins are opposite to those extracted with cationic two phase of C 12 NE SDS mixture, indicating that anionic two phase systems are complementary to the cationic two phase systems.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第11期1717-1719,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学青年基金
关键词
离子型
表面活性剂
双水相
染料
卟啉
萃取
Ionic surfactant, Aqueous two phase, Dye, Porphyrin, Extraction
