单扫描示波极谱法连测五味子、榛蘑中的铜和锌  

Successive determination of copper and zinc in schisandra, arimillaria mellea by single sweep oscillopolarography

作　　者：李巧云[1] 闫月荣 

机构地区：[1]江苏常熟理工学院化学系,常熟215500 [2]河南焦作师范高专,焦作454100

出　　处：《分析试验室》2005年第1期52-54,共3页Chinese Journal of Analysis Laboratory

摘　　要：研究了在HCl KSCN底液中用单扫描示波极谱法连续测定五味子、榛蘑中铜和锌的方法。在此底液中,铜、锌分别在-0.42V(vs.SCE)、-1.03V(vs.SCE)处产生一敏锐的二阶导数波,检出限分别为0.005、0.01μg/mL,线性范围分别为0.01～8.00μg/mL,0.01～10.00μg/mL。应用本方法测定了五味子、榛蘑中的铜和锌,方法回收率为96 5%～101 8%。A method for the determination of copper and zinc successively in schisandra and arimillaria mellea by single sweep oscillopolarography with HCl-KSCN as base solution is described. In this base solution, two well-defined quadratic derivative waves at -0.42 V (vs. SCE) and -1.03 V (vs. SCE) are observed. The detection limits are 0.005 μg/mL for copper and 0.01 (μg/mL) for zinc. The peak heights are linearly proportional to the concentration over the range of 0.01～8 μg/mL for copper and 0.01～10 μg/mL for zinc. The method has been applied to the determination of copper and zinc in schisandra and Arimillaria mellea with recoveries in the range of 96.5%～101.8%. This method is accurate,simple and fast with high selectivity.

关 键 词：单扫描示波极谱法 铜 锌 五味子 榛蘑 

分 类 号：O557.12[理学—热学与物质分子运动论]