1-(4-硝基苯基)-3-[4-(苯基偶氮)苯基]-三氮烯-溴化十六烷基三甲铵-阴离子表面活性剂显色反应的研究及应用  

Study on the Colour Reaction of 1(4nitrophenyl)3(4phenylazophenyl) Cetyltrimethylammonium BromideAnionic Surfactant and Its Application

作　　者：冯泳兰 

机构地区：[1]衡阳师范高等专科学校化学系

出　　处：《分析科学学报》1999年第2期150-153,共4页Journal of Analytical Science

基　　金：湖南省教育委员会资助

摘　　要：在三乙醇胺存在下，１－（４－硝基苯基）－３－［４－（苯基偶氮）苯基］－三氮烯（Ｃａｄｉｏｎ）与溴化十六烷基三甲铵（ＣＴＭＡＢ）和阴离子表面活性剂（ＡＳ）形成红色配合物，其最大吸收位于５５０ｎｍ。改变阴离子表面活性剂十二烷基苯磺酸钠、十二烷基磺酸钠、十二烷基硫酸钠时，有色配合物的表观摩尔吸光系数ε５５０分别为３．０２×１０４、２．１３×１０４、２．９４×１０４（Ｌｍｏｌ－１ｃｍ－１），阴离子表面活性剂服从比尔定律的范围分别为０～４．１８ｍｇ／Ｌ，０～２．１８ｍｇ／Ｌ，０～３．４６ｍｇ／Ｌ。方法用于测定环境水样中阴离子表面活性剂。A spetrophotometric method for determination of anionic sufactants has been reported. It is based on the formation of red complex of 1(4nitrophenyl)3(4phenyl azophenyl) , cetyltrimethylammonium bromide and anionic surfactant in the presence of triethanolamine.The maximum absorption wavelength of the complex is at 550nm. The apparent molar absorptivities of sodium dodecyl benzene sulfonate, sodium dodecyl sulfonate and sodium dodecyl sulfate are 3.02104,2.13104 and 2.94104Lmol-1cm-1, respectively. Beer's law is obeyed in the range of 0 to 4.18mg/L for DBOSO3Na, 0 to 2.18mg/L for DOSO3Na, 0 to 3.46mg/L for DSO4Na, respectively.The molar composition of red complex was found to be Cadion CTMAB AS =132. The method has been applied to the analysis of synthetic water and river water with satisfactory results.

关 键 词：表面活性剂 光度法 测定 水质监测 阴离子 

分 类 号：X832.02[环境科学与工程—环境工程] O647.2[理学—物理化学]