碳纤维电极溶出法测定电气塑料中的镉含量  

The determination of cadmium in electricity plastics by carbon fiber electrode Stripping voltammetry

作　　者：赵福全[1] 田景芝[1] 

机构地区：[1]齐齐哈尔大学化学与化学工程学院,齐齐哈尔161006

出　　处：《齐齐哈尔大学学报（自然科学版）》2007年第1期43-45,共3页Journal of Qiqihar University(Natural Science Edition)

摘　　要：本文研究了碳纤维电极在电气塑料中的镉测定中的应用,并进行了性能测试。在10.0mg/LHg2+—0.25mol/L盐酸溶液中测量镉,检测限达到0.080μg/L(电富集10min),用于测定电气塑料中的镉含量。标准加入回收率为92.6%。变异系数(n=11)<7.5%。碳纤维电极的峰高均值为276.51μA/V,标准差为3.112μA/V,变异系数为1.116%。碳玻电极的峰高均值为365.4μA/V,标准差为5.2468μA/V,变异系数为1.512%。碳纤维电极具有比GC电极更高的稳定性。The application in the determination of cadmium in electricity plastic by carbon fiber electrode and capability testing were studied. The determination of cadmium in solution of 10.0 mg/L Hg^2＋-0.25mol/L hydrochloric acid with a test limit of 0.080μg/L. The standard add recovery ratio was 92.6%,RSD was （ n=11 ） 〈7.5%. carbon fiber electtrode＇ s peak high was 276.51μ A/V, Standard deviation was 3.112 μ A/V, RSD was 1.116%. The GC electrode＇ s peak high was 365.4 μ A/V, Standard deviation was 5.246 μA/V, RSD was 1.512%. The carbon fiber electrode have a higher stability than GC electrode.

关 键 词：镉 碳纤维 溶山伏安法 塑料 

分 类 号：O657.1[理学—分析化学]