| 十二烷基硫酸钠—水杨基荧光酮痕量锡的光度测定 |
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| 引用本文： | 奚长生,何锡文.十二烷基硫酸钠—水杨基荧光酮痕量锡的光度测定[J].理化检验(化学分册),1998,34(7):297-299. |
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| 作者姓名： | 奚长生 何锡文 |
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| 作者单位： | 韶关大学化学系，南开大学化学系，南开大学化学系 韶关512005 |
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| 摘 要： | 提出一种高选择性、高灵敏度吸光光度测定痕量锡的方法。试验表明阴离子表面活性剂十二烷基硫酸钠具有特殊的选择性,在十二烷基硫酸钠的存在下,锡与水杨基荧光酮在强酸性介质中形成高灵敏度的三元配合物,常见干扰离子均不发生类似的显色反应,具有很高的选择性,不需分离可直接测定钢铁样品中的痕量锡。
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| 关 键 词： | 锡 吸光光度法 水杨基荧光酮 十二烷基硫酸钠 |
PHOTOMETRIC DETERMINATION OF TRACE TIN WITH SAF IN THE PRESENCE OF SDS |
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| Xi Changsheng.PHOTOMETRIC DETERMINATION OF TRACE TIN WITH SAF IN THE PRESENCE OF SDS[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,1998,34(7):297-299. |
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| Authors: | Xi Changsheng |
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| Abstract: | A new spectrophotometric method for determination of trace tin with high selectivity and sensitivity is developed and reported in this paper. The experiments show that anionic SDS have particular selectivity. In the presence of SDS,tin can react with SAF to form highly sensitive ternary complex in a strong acidic medium,but other common ions can not. This method has high selectivity, and can be used to determine trace tin in samples of steel alloys without separation. |
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| Keywords: | Tin Spectrophotometry Salicylfluorone Sodium dodecylsulphate |
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