摘要
在较高酸度的Ｈ３ＰＯ４介质中钯与ＤＢＳ－偶氮胂的新显色反应有较高的选择性。钯含量在０～１０μｇ／１０ｍｌ符合比尔定律，ε６１０＝３．３７×４０＾４。提出不经分离，准确、快速测定钛合金中微量钯的方法。
A new colour reaction of palladium with DBS—arsenazo was investigated. The selectivity of the reaction is better in high acidity of H_3PO_4 solution. The coloured species gives absorption maximum at 610nm with molar absorptivity being 2.37×10~4. Beer's law is obeyed in the range of 0～10μg/10ml. A rapid and accurate method was presented for the determination of trace palladium in titanium alloys without prior separation.
出处
《贵金属》
CAS
CSCD
北大核心
1993年第4期50-54,共5页
Precious Metals
关键词
钯
微量分析
分光光度法
钛合金
Palladium
Micro-analysis
Spectrophotometry
Alloy analysis
