| 共振光散射技术测定地表水中阴离子表面活性剂 |
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| 引用本文： | 陈展光,谢非,蒋文艳,邹航,邱晗頔,彭玉睿. 共振光散射技术测定地表水中阴离子表面活性剂[J]. 中国环境监测, 2009, 25(4) |
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| 作者姓名： | 陈展光 谢非 蒋文艳 邹航 邱晗頔 彭玉睿 |
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| 作者单位： | 汕头大学理学院化学系,广东,汕头,515063 |
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| 摘 要： | 用共振光散射(RLS)技术研究了以阳离子染料维多利亚蓝B(VBB)为探针,灵敏快速测定水体中阴离子表面活性剂的新方法.在pH3.0的Britton Robinson(BR)缓冲介质中,VBB与阴离子表面活性剂十二烷基苯磺酸钠(SDBS)相互作用,形成离子缔合物,产生强烈的RLS增强效应,RLS强度的增值与SDBS的浓度成正比.据此提出了测定水体中阴离子表面活性剂的新方法.方法检出限0.021mg/L,线性范围0.10～2.40mg/L,相关系数r=0.998.不需萃取和分离,使用普通的荧光分光光度计,简单、快速、灵敏.已用于地表水中实际水样的测定,测定的结果和回收率满意.
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| 关 键 词： | 阴离子表面活性剂 十二烷基苯磺酸钠 共振光散射技术 维多利亚蓝B |
Determination of Anionic Surfactants in the Water by Resonance Light Scattering Technology |
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| CHEN Zhan-guang,et al. Determination of Anionic Surfactants in the Water by Resonance Light Scattering Technology[J]. Environmental Monitoring in China, 2009, 25(4) |
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| Authors: | CHEN Zhan-guang et al |
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| Affiliation: | College of Chemistry;Shantou University;Shantou 515063;China |
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| Abstract: | The determination of the anionic surfactant sodium dodecyl benzene sulfonate(SDBS) based on the reaction between cationic dye Victoria Blue B(VBB) and SDBS by the resonance light scattering(RLS) technique is described in this paper.In the pH 3.0 Britton-Robinson buffer,VBB reacted with SDBS and produced large particles which resulted in the remarkable enhancement of the RLS intensity of VBB.The enhancement of VBB RLS intensity of the system was proportional to the concentration of SDBS in the range of 0.10-... |
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