摘要
在NH_3-NH_4Cl缓冲溶液中,以线性扫描阳极溶出伏安法测定食盐中的锌,锌的加标回收率为99.1%～106.0％,测定结果的相对标准偏差为0.90％～4.10％。锌的浓度在0.10～0.70mg/L与峰电流强度呈线性关系,线性方程为i=2.5800c+0.0500,相关系数为0.9955。
Determination of zinc in the salt was studied by linear sweep anodic stripping voltammetry in NH3-NH4Cl solution. The recovery and RSD of Zn were 99.1%-106.0% and 0.90%-4.10% respectively. The linear range of Zn was 0.10-0.70 mg/L(r=0.9955).
出处
《化学分析计量》
CAS
2002年第6期17-18,共2页
Chemical Analysis And Meterage
关键词
线性扫描阳极溶出伏安法
测定
食盐
锌
分析
linear sweep anodic stripping voltammetry, determination, salt, Zn
