| 共振光散射方法研究钙存在下十二烷基苯磺酸钠的聚集行为 |
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| 引用本文： | 李振泉,宋新旺,严兰,田志铭,刘潇彧,周海平,吴霞. 共振光散射方法研究钙存在下十二烷基苯磺酸钠的聚集行为[J]. 分析化学, 2009, 37(7) |
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| 作者姓名： | 李振泉 宋新旺 严兰 田志铭 刘潇彧 周海平 吴霞 |
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| 作者单位： | 1. 中国石化胜利油田分公司地质科学研究院,东营,257015
2. 山东大学胶体与界面化学教育部重点实验室,济南,250100 |
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| 摘 要： | 利用共振光散射技术在不引入探针的条件下,建立了室温下直接测定十二烷基苯磺酸钠(SDBS)的临界胶束浓度(CMC)的方法.研究发现:在室温下,SDBS水溶液的共振光散射强度(RLS)随SDBS浓度的增加而增强;且当SDBS接近其临界胶束浓度时,RLS强度增强显著,共振光散射峰分别位于330和396 nm.396 nm处的RLS强度与SDBS浓度关系曲线呈S型曲线,本文将曲线突升起点处两条切线的交点对应的SDBS浓度,确定为SDBS的临界胶束浓度(CMC),这与荧光芘探针和电导率等方法测定结果基本一致.并利用此方法分别研究了Ca2+浓度对SDBS及其SDBS-聚乙二醇辛基苯基醚(OP)复配体系聚集行为的影响.结果表明,SDBS与OP以1∶ 3复配时,增强了体系的抗钙能力.
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| 关 键 词： | 十二烷基苯磺酸钠 钙 临界胶束浓度 共振光散射 荧光探针 电导率 calcium |
Aggregation Behavior of Sodium Dodecylbenzene Sulfonate with Ca~(2+) by Resonance Light Scattering Method |
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| LI Zhen-Quan,SONG Xin-Wang,YAN Lan,TIAN Zhi-Ming,LIU Xiao-Yu,ZHOU Hai-Ping,WU Xia. Aggregation Behavior of Sodium Dodecylbenzene Sulfonate with Ca~(2+) by Resonance Light Scattering Method[J]. Chinese Journal of Analytical Chemistry, 2009, 37(7) |
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| Authors: | LI Zhen-Quan SONG Xin-Wang YAN Lan TIAN Zhi-Ming LIU Xiao-Yu ZHOU Hai-Ping WU Xia |
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| Affiliation: | LI Zhen-Quan,SONG Xin-Wang,YAN Lan,TIAN Zhi-Ming(Geological Research Institute of Shengli Oilfield Co.Ltd,SINOPEC,Dongying 257015)LIU Xiao-Yu,ZHOU Hai-Ping,WU Xia(Key Laboratory of Colloid and Interface Chemistry(Shandong University),Ministry of Education,Jinan 250100) |
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| Abstract: | A resonance light scattering(RLS)method for the determination of critical micelle concentration(CMC)of sodium dodecyl benzene sulfonate(SDBS)was proposed.Under room temperature,the RLS intensity of the SDBS system increased with increasing SDBS concentration.And when the concentration of SDBS approached CMC,the RLS intensity had increased sharply.The RLS peaks were appeared at 330 nm and 396 nm,respectively.The plot of the RLS intensity at 396 nm versus SDBS concentration was S-Curve.The concentration of SD... |
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| Keywords: | Sodium dodecyl benzene sulfonate critical micelle concentration resonance light cattering fluorescence probe electrical conductivity |
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