Position: Home > Articles > Successive Determination of Copper and Zinc in Walnut Kernel and Agaric by Single Scanning Oscillopolarography
FOOD SCIENCE
2005,26
(3)
189-192
核桃仁和山木耳中铜、锌的连续测定
作 者：
居红芳
单 位：
常熟理工学院化学系
关键词：
单扫描示波极谱法;铜;锌;测定
摘 要：
研究了在HCl—KSCN底液中用单扫描示波极谱法连续测定核桃仁和山木耳中铜、锌含量的方法。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0.005g/ml、0.01g/ml,线性范围分别为0.01～8.00g/ml,0.01～10.00g/ml。应用本方法测定了核桃仁和山木耳两种山珍中的铜、锌含量,回收率在96.4%～102.9%。此方法准确、简便、快速、灵敏度高。
译 名：
Successive Determination of Copper and Zinc in Walnut Kernel and Agaric by Single Scanning Oscillopolarography
作 者：
JU Hong-fang (Department of Chemistry, Changshu College, Changshu 215500, China)
关键词：
single scanning oscillopolarography;copper;zinc;determination
摘 要：
A method for the determination of copper and zinc successively in two natural resources, walnut kernel and agaric by single scanning oscillopolarography with HCl-KSCN as base solution was described in this paper. In the base solution, two well-defined quadratic derivative waves at –0.42V(vs.SCE) and –1.03V(vs.SCE) were observed. The detection limits were: 0.005μg/ml for copper and 0.01μg/ml for zinc. The peak heights were linearly proportional to the concentration of copper over the range of 0.01～8μg/ml copper and 0.01～10μg/ml zinc. The method has been applied to the determination of copper and zinc in walnut kernel and agaric with recoveries in the range of 96.4%～102.9%. This method was shown to be accurate, simple and fast with high selectivity.
相似文章
-
草甘膦的亚硝基化单扫描示波极谱法测定及其应用 [孙楠, 胡宝祥, 莫卫民] 农药 2007,46 (9) 37-39
