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首页> 外文期刊>African Journal of Chemistry >Development of a sensitive spectrophotometeric method for determination of copper
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Development of a sensitive spectrophotometeric method for determination of copper

机译：建立灵敏的分光光度法测定铜的方法

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Simple and rapid spectrophotometeric procedure have been established for quantitation of Cu (II).This method is based on the reaction between alizarin red S and boric acid in the solution of pH 8.5 to produce a red complex which place between organic and aqueous phases. In presence of Cu (II), the complex of alizarin red S and boric acid is dissociated and new complex between alizarin red S and metal ions formed which can be measured at the optimum wavelength. All variables were studied to optimize the reaction conditions. Regression analysis of beer’s low plot showed good correlation in concentration range 0.6 - 15 μg.mL~(-1). The molar absorptivity and detection limit are calculated. The interference effects of the foreign cation have been examined.
机译：建立了简单快速的分光光度法测定铜（II）的方法，该方法基于茜素红S与硼酸在pH 8.5的溶液中反应生成红色络合物，该络合物位于有机相和水相之间。在Cu（II）的存在下，茜素红S与硼酸的络合物解离，并且茜素红S与金属离子之间形成了新的络合物，可以在最佳波长下对其进行测量。研究了所有变量以优化反应条件。啤酒低积的回归分析显示，浓度范围为0.6-15μg.mL〜（-1）有很好的相关性。计算摩尔吸光度和检测极限。已经检查了外来阳离子的干扰作用。

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