| 赤藓红或曙红直接分光光度测定阳离子表面活性剂 |
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| 引用本文： | 刘绍璞,吉方英.赤藓红或曙红直接分光光度测定阳离子表面活性剂[J].西南师范大学学报(自然科学版),1991,16(3):326-331. |
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| 作者姓名： | 刘绍璞 吉方英 |
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| 作者单位： | 西南师范大学化学系 重庆630715
(刘绍璞)，西南师范大学化学系 重庆630715(吉方英) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 基于在乳化剂OP存在下的水溶液中赤藓红和曙红等酸性咕吨染料与阳离子表面活性剂(CS)的离子缔合反应,发展了一种分光光度测定阳离子表面活性剂的新方法.反应的适宜pH值为1.6—2.1(赤藓红体系)和1.4—1.8(曙红Y体系),离子缔合物的组成为(CS)(HR).显色反应有较高的灵敏度和良好的选择性,可用于水中阳离子表面活性剂的测定.
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| 关 键 词： | 阳离子 表面活性剂 分光光度法 |
DIRECT SPECTROPHOTOMETRIC DETERMINATION OF CATIONIC SURFACTANTS WITH ERYTHROSIN OR EOSIN Y |
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| Liu Shaopu Ji Fangying.DIRECT SPECTROPHOTOMETRIC DETERMINATION OF CATIONIC SURFACTANTS WITH ERYTHROSIN OR EOSIN Y[J].Journal of Southwest China Normal University(Natural Science),1991,16(3):326-331. |
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| Authors: | Liu Shaopu Ji Fangying |
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| Abstract: | A new spect ophotometric method for determination of cationic surfactants (CS ) was developed, on the based the ion-associating reactions of acidic xan-thene dye (H2R) such as erythrosin and eosin Y with cationic surfactans in aqueous solution in the presence of emulsifying agent op. The suitable pH are 1.6-2.1(erythrosin system ) and 1.4-1.8(eosin Y system), and the composition of the ion-associates are(CS) (HR). The colour reactions have higher sensitivities and selectivities and so it can be applied for determination of cationic surfactants in water samples. |
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| Keywords: | cationie surfactants determination spectrophotometry erythrosin eosin Y |
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