| 染料离子缔合三元络合物反相萃取光度法研究──2，2′联喹琳─甲酚红体系测定微量铜（Ⅰ） |
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| 引用本文： | 刘保生.染料离子缔合三元络合物反相萃取光度法研究──2，2′联喹琳─甲酚红体系测定微量铜（Ⅰ）[J].河北大学学报(自然科学版),1995(4). |
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| 作者姓名： | 刘保生 |
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| 作者单位： | Centre of Physical and Chemical Analysis，Hebei University，Baoding 071002 |
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| 摘 要： | 本文研究了铜（Ⅰ）－２，２′联喹琳（Ｂｉ－ｑｕ）－甲酚红（ＣＲ）络合物的萃取及分解反应，利用分解游离出的ＣＲ水相间接测定铜含量。表现摩尔吸光系数由２．１１×１０４Ｌ／ｍｏｌ／ｃｍ增至６．３２×ｌ０４Ｌ／ｍｏｌ／ｃｍ提高３倍，０．４～４ｍｇ／Ｌ铜服从比耳定律。该方法选择性高，可不经分离直接用于铝合金中微量铜的测定。
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| 关 键 词： | 铜（Ⅰ） 2.2′联喹琳 甲酚红 反相萃取光度法 |
Study on Antiphase Extrative Spectrophotometry with Dye Ion Complex Spectrophotometric Determination of Micro Copper with Copper──( I )-2, 2'-Biquinoline-cresol Red Complex |
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| Liu Baosheng.Study on Antiphase Extrative Spectrophotometry with Dye Ion Complex Spectrophotometric Determination of Micro Copper with Copper──( I )-2, 2'-Biquinoline-cresol Red Complex[J].Journal of Hebei University (Natural Science Edition),1995(4). |
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| Authors: | Liu Baosheng |
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| Abstract: | The conditions of extraction and dissociative resolution of copper( l )-2,2'-biquinoline-cresol red complex were studied. A highly sensitive method for determination of micro amount of copper in aluminium alloy by determining spectrophotometrically the amount of free cresol red dissociated from the copper complex was proposed. Beer's law is obeyed for 0.4￣4 x 10-6 g of copper in 1ml of solution with a apparent molar absorptivity of 6.32x 104 L / mol . cm. |
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| Keywords: | Coppeer(I) 2 2-'Biquinoline-Cresol red complex Antiphase extrative spectrophotometry |
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