摘要
对镉与邻菲啰啉配合物的极谱波性质进行了研究。试验表明,在pH3.3的HCl—NaAc缓冲溶液中,镉与邻菲啰啉生成的配合物在-0.65V处产生一灵敏的吸附波,其2次导数的波高与镉浓度在0.0006～0.1mg/L范围内呈线性关系,检出下限为0.0003mg/L。此法经用于环境水样中微量镉的测定,结果与其他测定方法基本吻合。
The behaviour of the polarographic wave for the complex of cadmium with 1,10-phenanthroline has been studied. It was found that the complex of cadmium with 1,10-phenanthroline could produce sensitive absorptive wave at -0.65 (vs. SCE) in a buffer solution of HCl-NaAc (pH3.3). Linear relationship between secondary derivative wave height and concentration of cadmium could be obtained in the range of 0.0006-0.1mg/L.The detection limit was 0.0003mg/L. The method has been applied to determination of trace cadmium in environmental water sample. The results were in good agreement with those obtained by other methods.
出处
《上海环境科学》
CAS
CSCD
1996年第5期30-31,共2页
Shanghai Environmental Sciences
关键词
镉
邻菲啰啉
螯合效应
谱仪
吸收光谱法
Cadmium 1,10-phenanthroline Chelate effect Spectrometer Absorption spectrometry
