| 用缔合物解析光度法测定微量铜(I) |
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| 引用本文： | 刘保生.用缔合物解析光度法测定微量铜(I)[J].河北大学学报(自然科学版),1999(1). |
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| 作者姓名： | 刘保生 |
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| 作者单位： | 河北大学理化分析研究中心 |
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| 摘 要： | 研究了铜（Ⅰ）－２，２′－联喹啉（Ｂｉ－ｑｕ）－溴酚蓝（ＢＰＢ）缔合物的萃取及分解反应，利用分解游离出的溴酚蓝在水相间接测定微量铜。表观摩尔吸光系数由２．０２×１０４增加至５．３２×１０４Ｌ／（ｍｏｌ·ｃｍ），提高了２．７倍，在０．４～８．０ｍｇ／Ｌ内服从比尔定律。该方法选择性高，可不经分离直接用于人发中微量铜的测定。
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| 关 键 词： | 铜 2.2′－联喹啉 溴酚蓝 光度法 |
Determination of Microcopper with Indirect Spectrophotometry by Resolving the Complex |
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| Liu Baosheng.Determination of Microcopper with Indirect Spectrophotometry by Resolving the Complex[J].Journal of Hebei University (Natural Science Edition),1999(1). |
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| Authors: | Liu Baosheng |
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| Abstract: | The conditions for the extraction and dissociation resolution of copper-2,2′-biquinoline-bromophenol blue complex were studied.A highly sensitive method for indirect spectrophotometric determination of copper(Ⅰ) by dissociation resolution of the complex was proposed.Beer's law is obeyed for 0.4～8.0 mg of copper in 1 mL of solution with an apparent molar absorptivity of 5.32×104 L/(mol·cm). |
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| Keywords: | Copper 2 2′-Biquinoline Bromophenol blue Spectrophotometry |
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