摘要
本文研究了在ｐＨ３．Ｏ的缓冲溶液中，利用邻菲罗嘛活化Ｐｄ（Ⅱ）催化水中溶解氧氧化二苯硫腙褪色的指示反应，建立了测定痕量钯的萃取催化动力学分析方法。方法的灵敏度为３．３×１０￣（－９）ｇ／ｍＬ，线性范围为７．５×１０￣（－９）～４．０×１０￣（－７）Ｇ／ｍＬ。用于钯催化剂中钯的测定，获得了满意的结果。
In this paper an extraction catalytic kinetic spec-trometric method for the determination of trace palla-dium(Ⅱ)has been described, based on the fact thatpalladium(Ⅱ)can catalyse the oxidation of dithizone by oxygen in the presence of 1,10-phenanthroline asan activator. The detection limit for palladium(Ⅱ)is3.3 × 10￣(-9)g/mL,The linear range is from 7.5 × 10￣(-9)to 4.0× 10￣(-7)G/mL of palladium,The method has beenused to determine palladium in catalysts with satisfac-tory results.
出处
《分析试验室》
CAS
CSCD
北大核心
1994年第3期65-66,76,共3页
Chinese Journal of Analysis Laboratory
关键词
钯
二萃硫腙
萃取
催化动力学
Palladium determination
dithizone
catalytic kinetic analysis
