摘要
本文研究了偶氮硝磺Ⅲ分光光度法测定微量铂的条件,方法较灵敏,表观摩尔吸光系数为1.75×10~5L·mol^(-1)·cm^(-1)。并测定了铂催化剂及合成样品中的铂,结果令人满意。
The complex reaction of nitrosulfonazo Ⅲ with platinum has been studied. The absorbance due to complex is measured at 579 nm with molar absorptivity of 1.75×10~5 for Pt. Beer's law is obeyed in the range of 2 to 7μg/25ml. The method has been applied to the analysis of samples of the catalyst containing Pt with satisfactory results. Up to now it seems to be the most sensitive method for the determination of ultramicro Pt.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1989年第11期1004-1006,共3页
Chinese Journal of Analytical Chemistry
关键词
铂
分光光度法
偶氮硝磺Ⅲ
Nitrosulfonazo Ⅲ
Platinum
Spectrophotometry
