摘要
研究了碳纤维电极在酒铅测定中的应用 ,并进行了性能测试 .在 1 0 .0mg LHg2 + — 0 .2 5mol L盐酸溶液中测量铅 ,检测限达到 0 .0 2 0 μg L(电富集 1 0min) ,用于测定白酒中的铅含量 .标准加入回收率为 93 .5 % .变异参数 (RSD ,n =1 1 ) <8.3 % .碳纤维电极的峰高均值为 2 68.5 7μA V ,标准差为3 .2 5 6μA V ,变异系数为 1 .2 1 3 % .GC电极的峰高均值为 3 73 .3 μA V ,标准差为 5 .7987μA V ,变异系数为 1 .5 5 3 % .
The application in the detemination of lead in wine by carbon fiber electrode and capability testing were studied.The determination of lead in solution of 10.0 mg/L ratio was 93.5%,RSD was( n =11)<8.3%.Carbon fiber electrode's peak high was 268.57 μA/V,standard deviation was 3.256 μA/V,RSD was 1.213%.The GC electrode's peak high electrode have a higher stability than GC electrode.
出处
《高师理科学刊》
2003年第2期45-47,共3页
Journal of Science of Teachers＇College and University
关键词
铅
碳纤维
溶出伏安法
lead
carbon fiber
stripping voltammetry
