| 溶剂浮选吸光光度法测定微量铂 |
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| 引用本文： | 李保山. 溶剂浮选吸光光度法测定微量铂[J]. 辽宁石油化工大学学报, 1992, 0(4) |
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| 作者姓名： | 李保山 |
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| 作者单位： | 抚顺石油学院应用化学系 |
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| 摘 要： | 本文拟定了以 Pt—SnCl_2—CPB 体系溶剂浮选吸光光度法测定微量铂的方案。表观摩尔吸光系数为4.5×10~(-5)Lmol~(-1)·cm~(-1),铂的回收率几乎达100%,可用于各种含铂废料中微量铂的测定。
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| 关 键 词： | 铂 铂分析 溶剂浮选 吸光光度法 |
Determination of Trace Platinum by Solvent Sublation Spectrophotometry |
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| Li Baoshan. Determination of Trace Platinum by Solvent Sublation Spectrophotometry[J]. Journal of Liaoning University of Petroleum & Chemical Technology, 1992, 0(4) |
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| Authors: | Li Baoshan |
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| Abstract: | In this paper is discussed a method for determination of trace platinum with sol- vent sublation spectrophotometry,based on the ion-associate formed by [Pt(SnCI_3)_5]~(3-)and CPB(cetylpyridine bromide)The ion-associate finally formed is slight soluble in water,but it is readily soluble in CH_3COOC_2H_5.The absorbance of the solution is measured at 40Onm against the reagent blank prepared in the same way.The apparent molar absorptivity is 4.5×10~5L·mol~(-1)·cm~(-1).Beer's law is obeyed over the range of 0～70μg(the aqueous phase volume is 200mL,the organic phase volume is 5.00mL),The recovery of platinum is nearly 100%. |
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| Keywords: | Platinum Platinum analysis Solvent sublation Spectrophotometry |
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