引用本文:
莎仁, 张志颖. 抗坏血酸还原钙试剂动力学光度法测定蒙药和发样中痕量铜[J]. 应用化学,
2006, 23(10): 1179-1181.
Citation: SHA Ren, ZHANG Zhi-Ying. A Kinetic Spectrophotometric Method of Reduction of Calcon with Ascorbic Acid for Determination of Trace Copper(Ⅱ) in Mongolian Medicine and Hair Sample[J]. Chinese Journal of Applied Chemistry, 2006, 23(10): 1179-1181.
Citation: SHA Ren, ZHANG Zhi-Ying. A Kinetic Spectrophotometric Method of Reduction of Calcon with Ascorbic Acid for Determination of Trace Copper(Ⅱ) in Mongolian Medicine and Hair Sample[J]. Chinese Journal of Applied Chemistry, 2006, 23(10): 1179-1181.
抗坏血酸还原钙试剂动力学光度法测定蒙药和发样中痕量铜
English
A Kinetic Spectrophotometric Method of Reduction of Calcon with Ascorbic Acid for Determination of Trace Copper(Ⅱ) in Mongolian Medicine and Hair Sample
Abstract:
In an acetic acid-sodium acetate buffer medium,trace amounts of copper has sensitive catalytic activity toward the reduction of calcon with ascorbic acid in the presence of active agent O-phenanthroline.The optimum condition and kinetic parameter of the reaction were studied and a new method was established for the determination of trace amounts of copper.The detection limit in this method is 1.54×10-10 g/mL.The linear range is between 0~1.1×10-7 g/mL.This method was applied to the determination of copper in Mongolian medicine and hair sample with satisfactory results.
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Key words:
- copper(Ⅱ)
- / calcon
- / kinetic spectrophotometry
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