meso-四(4-磺基苯基)卟啉双波长分光光度法测定阳离子表面活性剂  

Dual -Wavelength Spectrophotometric Determination of Cationic Surfactant by Using meso -Tetrakis (p-sulfophenyl )porphine

作　　者：黄承志[1] 张玉梅[1] 黄新华[1] 李原芳[1] 刘绍璞[1] 

机构地区：[1]西南师范大学环境化学研究所,重庆400715

出　　处：《分析化学》1998年第7期823-826,共4页Chinese Journal of Analytical Chemistry

基　　金：重庆市中青年科技专家基金;西南师范大学自然科学基金

摘　　要：在酸性条件下，阳离子表面活性剂使ｍｅｓｏ－四（４－磺基苯基）卟啉（ＴＰＰＳ４）发生Ｊ－型聚合，在４９０ｎｍ处出现Ｊ－型聚集吸收峰并导致位于４３４ｎｍ的Ｓｏｒｅｔ吸收带降低。阴离子表面活性剂如十二烷基硫酸钠（ＳＤＳ）使聚集更一步增强。据此建立起水中痕量阳离子表面活性剂的双波长分光光度测定法。方法成功地应用于合成和实际水样分析。Cationic surfactant can induce the J-aggregation of meso - tretrakis(p - sulfophenyl ) porphine in acidic solutions with the J-aggregtion absorption band at 490 nm, and reducing the fort absorption of the porphyrin. Anionic surfactant such as sodium dodecyl sulfate (SDS) encourages the J-aggregation. Based on the reactions, a dual-wavelength spectrophotometric method was proposed for the determinations of cationic surfactants in synthetic and real Samples.

关 键 词：阳离子 表面活性剂 测定 Zeph CTMAB TPPS4 

分 类 号：O647.2[理学—物理化学]