1-(2-羟基-3,5-二硝基苯基)-3-[4-(苯基偶氮)苯基]-三氮烯-阴离子表面活性剂-季铵盐型阳离子表面活性剂显色反应及其应用  

Chromogenic Reaction of 1-(2-Hydroxy-3,5-dinitrophenyl)-3(-4-phenylazophenyl) -triazene-Anionic Surfactants-Quaternary Ammonium Cationic Surfactants and Their Applications

作　　者：冯泳兰[1] 

机构地区：[1]衡阳师范学院化学系,衡阳421008

出　　处：《分析化学》1999年第8期961-964,共4页Chinese Journal of Analytical Chemistry

基　　金：湖南省教育委员会资助项目

摘　　要：在三乙醇胺介质中，新试剂１－（２－羟基－３，５－二硝基苯基）－３－「４－（苯基偶氮）苯基」－三氮烯（ＨＤＮＰＡＰＴ）与季铵盐型阳离子表面活性剂及阴离子表面活性剂（ＡＳ）反应显色，形成三元（ＤＢＯＳＯ３Ｎａ），十二烷基磺酸钠（ＤＯＳＯ３Ｎａ）和十二烷基硫酸钠（ＤＳＯ４Ｎａ）的方法，表观摩尔吸光系数均达１０＾４以上。方法已应用于环境水样中阴离子表面活性剂的测定。The chromogenic ternary complexes were formed via reaction of novel reagent 1-(2-hydroxy-3, 5-dinitrophenyl)-3-(4-phenylazophenyl)-triazene (HDNPAPT) with anionic surfactants (AS) and quaternary ammonium cationic surfactants in the medium of triethanolamine. The condition experiment of chromogenic reaction has been investigated. The mehtods of determination for sodium dodecyl benzene sulfonate (DBOSO3Na) , sodium dodeceyl sulfonate (DOSO3Na) and sodium dodeceyl sulfate (DSO4Na) were built. The maximum absorption wavelength of the complexes for HDNPAPT-AS-Cethyltrimethyl ammonium bromide (CTMAB), HDNPAPT-AS-CPB and HDNPAPT-AS-dodecylimethyl-benzylammonium bromide (DDMBAB) are at 585nm, 575nm and 480 nm, respectively. The apparent molarabsorptivities of chromogenic complexes are 1.01-6.46×104L·mol-1·cm-1. The method has beenapplied to the determination of anionic surfactants in the surrounding water. The results coincide with the analytical results of mediylene blue method.

关 键 词：DBOSO3Na DOSO3Na DSO4Na 表面活性剂 测定 

分 类 号：O647.2[理学—物理化学]