| 季胺盐型表面活性剂与镉试剂显色反应的研究及应用 |
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| 引用本文： | 冯泳兰.季胺盐型表面活性剂与镉试剂显色反应的研究及应用[J].分析化学,1998,26(10):1209-1213. |
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| 作者姓名： | 冯泳兰 |
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| 作者单位： | 衡阳师范高等专科学校化学系!衡阳421008 |
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| 基金项目： | 湖南省教育委员会资助项目 |
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| 摘 要： | 在三乙醇胺存在下，季铵盐型表面活性剂溴化十六烷基三甲铵，溴化十二烷基二甲基苄铵和溴化十六烷基吡啶分别与１－（４－硝基苯基）－３－「４－苯基偶氮）苯基」－三氮烯形成离子缔合物显色，吸收光谱红移，离子缔合物；ＮＰ－ＰＡＰＴ与ＤＤＭＢＡＢ来１：２与ＣＴＭＡＢ，ＣＰＢ均为１：３；测定了显色体系的ＣＴＭＡＢ，ＤＤＭＢＡＭ，ＣＰＢ的临界胶束浓度，符合比尔定律的范围，表观摩尔吸光系数δｍａｘ，探讨了微量ＣＴＭＡ
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| 关 键 词： | 季胺盐型 表面活性剂 镉试剂 CTMAB DDMBAB CPB |
Chromogenic Reaction of Quaternary Ammonium Surfactants With 1- (4-Nitrophenyl ) -3- (4-phenylazophenyl ) triazene and Its Applications |
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| Feng Yonglan.Chromogenic Reaction of Quaternary Ammonium Surfactants With 1- (4-Nitrophenyl ) -3- (4-phenylazophenyl ) triazene and Its Applications[J].Chinese Journal of Analytical Chemistry,1998,26(10):1209-1213. |
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| Authors: | Feng Yonglan |
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| Abstract: | The l:3, 1: 2 and l:3 chromogenic complexes of ion association of 1 - (4- nitrophenyl) -3 - (4phenylaophenyl ) triazene (NPPAPT ) with cethyltrimethylammonium bromide bromide (CTMAB ), dodecyldimethybenzylammonium bromide(DDMBAB) and cetylpyridinium bromide(CPB) were formed, respectively,in the presence of triethanolamine.All absorption spectra of chromogenic systems occurred red shift. Based on these chromogenic reactions,the critical micella concentrations of CTMAB, DDMBAB and CPB can be determined.The range for the determination and apparent molar absorptivity were investigated,the possibility for the spectrophotometric determination of trace CTMAB,DDMBAB and CPB was discussed. |
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| Keywords: | Cethyltrimethylammonium bromide dodecyldimethylbenzylammonium bromide cetylpyridinium bromide 1-(4-nitropheny1)-3-(4-phenylazopheny1)trazene chromogenic reaction spectrophotometry |
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