摘要
本文利用“组合导数分光光度法”,在碱性介质中,以四(对-羟基苯基)卟啉作显色剂,以咪唑作催化剂,对锌、镉的同时测定进行了详细研究。该法使测定锌的表观摩尔吸光系数提高到10~6L·mol^(-1)·cm^(-1),同时解决了重叠谱带相互干扰的问题。对合成样品进行分析,结果令人满意。
In this paper, the simultaneous determination of zinc and cadmium using the combined derivative spectrophotometry has been studied in the presence of tetrakis (4-hydroxyphenyl)porphyrin and imidazole. The sensitivity of Zn is 1×10~6 L·mol^(-1)·cm^(-1). The interferences of overlappd spectra have been overcome. Satisfactory results are obtained in the rapid determination of Zn and Cd in composed examples.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1991年第12期1421-1423,共3页
Chinese Journal of Analytical Chemistry
关键词
组合导数
分光光度法
锌
镉
测定
Combined derivative spectrophotometry, Zinc, Cadmium
