| 曙红Y共振光散射法测定水中十六烷基三甲基溴化铵 |
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| 引用本文： | 姚寒春,陈娟,许二俊,张敏.曙红Y共振光散射法测定水中十六烷基三甲基溴化铵[J].日用化学工业,2011,41(5):381-383,387. |
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| 作者姓名： | 姚寒春 陈娟 许二俊 张敏 |
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| 作者单位： | 郑州大学药学院,河南 郑州,450001 |
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| 基金项目： | 郑州大学创新性实验资助项目(2010cxsy003) |
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| 摘 要： | 利用共振光散射(RLS)技术,通过曙红Y与阳离子表面活性剂十六烷基三甲基溴化铵(CTAB)缔合产生强烈共振光散射增强效应,建立了一种测定阳离子表面活性剂CTAB的方法.实验结果表明,在pH=4.96的柠檬酸钠-盐酸缓冲介质中,采用吐温80作为曙红Y -CTAB体系的稳定剂,痕量CTAB的加入导致曙红Y在440～ 600 nm波长内的共振光强度增加,最大RLS峰位于538 nm处,其强度与CTAB的质量浓度在0～40 mg·L-1内成正比,检出限为0.012 mg·L-1.方法具有较高的灵敏度和良好的选择性,可用于水样中CTAB的测定.
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| 关 键 词： | 十六烷基三甲基溴化铵 共振光散射 测定 |
Determination of cetyltrimethylammonium bromide in water with eosin Y resonance light scattering method |
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| YAO Han-chun
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CHEN Juan
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XU Er-jun
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ZHANG Min.Determination of cetyltrimethylammonium bromide in water with eosin Y resonance light scattering method[J].China Surfactant Detergent & Cosmetics,2011,41(5):381-383,387. |
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| Authors: | YAO Han-chun CHEN Juan XU Er-jun ZHANG Min |
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| Affiliation: | YAO Han-chun,CHEN Juan,XU Er-jun,ZHANG Min(School of Pharmaceutical Sciences,Zhengzhou University,Zhengzhou,Henan 450001,China) |
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| Abstract: | Based upon the phenomenon that cetyltrimethylammonium bromide(CTAB) can associate with eosin Y and displays vigorous enhancement effect on resonance light scattering(RLS) intensity,a novel method for the determination of trace amount of CTAB in water was developed.Experimental results showed that in a sodium citrate-hydrochloric acid buffer solution with pH=4.96,and with Tween 80 as the stabilizer of eosin Y-CTAB system,addition of trace amount of CTAB resulted in enhancement of the RLS intensity of eosin Y... |
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| Keywords: | cetyltrimethylammonium bromide resonance light scattering determination |
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