摘要
吸收光谱电化学方法是一种新型的分光光度法,它不必加入显色剂,只要控制电极电位和扩散层pH值,就能迅速测得吸光度。此法的基础研究近年逐渐增多,但实际应用较少。作者在前文的工作基础上,用原子吸收分光光度计和空心阴极光源组装成的吸收光谱电化学测量仪,研究了吸收光谱电化学测定Cr(Ⅲ)和Cr(Ⅵ)的条件,提出了实际样品中Cr(Ⅲ)和Cr(Ⅵ)的分析方法。
The measurement conditions of absorption spectroelectrochemistry of Cr(Ⅲ) were investigated. The determination method of Cr(Ⅲ) and Cr(Ⅵ) in electroplating solution was proposed. The results show that the best sensitivity was obtained when atomic absorption spectrophotometer and hollow cathode light source were in place of the UV spectrophotometer and deuterium lamp was used for measurement absorption spectroelectrochemistry of Cr(Ⅲ). The technique yields increase 1.7 times in sensitivity compared with west method.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第4期418-420,共3页
Chemical Journal of Chinese Universities
基金
中国科学院科学基金
关键词
铬
电镀液
吸收光谱
电化学测定
Absorption spectroelectrochemistry, Chromium determination
Electroplating solution
