| 乙基紫萃取分光光度测定微量铅 |
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| 引用本文： | 张桂恩,程定玺,刘荣月.乙基紫萃取分光光度测定微量铅[J].河南师范大学学报(自然科学版),1985(4). |
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| 作者姓名： | 张桂恩 程定玺 刘荣月 |
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| 作者单位： | 河南师范大学，河南师范大学 1985年化学系毕业生，1985年化学系毕业生 |
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| 摘 要： | 用萃取分光光度法研究了铅在碘化钾硫酸介质中与乙基紫所形成的缔合物。研究了酸度、KI,乙基紫的浓度、萃取剂对缔合离子的形成的影响,找到了萃取铅的缔合离子的适宜的条件。研究了铅—KI—乙基紫缔合物的萃取物的基本光谱特征。表现摩尔吸光系数ε_(618)=5.6×10~4,拟定了在不同纯盐样品中测定铅的公光光度方法。手续简便,快速。分析结果好。
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Spectrophotmetric determination of micro amount Lead by ethyl violet extraction |
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| Abstract: | This paper deals with the spectrophotometric determination of micro amountLead by ethyl violet extraction.lead produces aComplex with ethyL violet inKI—H_2SO_4 media.The effect of acidity、Concentration of KI and ethyl violetextractant to Complex ion were Studied,the optimum conditions of extractionof pb—complex ion were found.The foundational spectroscopic features of pb-KI—ethyl violet complex ion were investigated,molar absorption ε_(618)=5.6×10~4.1t is a good method for the determination of lead,because it's simpleand quick. |
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