钯(Ⅱ)-DApCM-钒(Ⅴ)体系阻抑动力学光度法测定微量钯(Ⅱ)  

Determination of micro palladium(Ⅱ) in system ofPd(Ⅱ)DApCMV(Ⅴ) by inhibitory kinetic spectrophotometric method

作　　者：刘家琴[1,2] 徐其亨[1,2] 李祖碧 朱利亚[1,2] 

机构地区：[1]四川省绵阳师范专科学校 [2]云南大学

出　　处：《黄金》1998年第6期47-49,共3页Gold

摘　　要：通过发现钯（Ⅱ）在磷酸介质中能抑制二安替比林对氯苯基甲烷（ＤＡｐＣＭ）与钒（Ⅴ）的显色反应，研究了反应的条件和动力学参数，建立了测定微量钯（Ⅱ）的新方法。本法线性范围为８０～４８０μｇ／Ｌ，检测限为８０μｇ／Ｌ。用于冶金产品和钯催化剂中钯的测定，结果满意。It was found that palladium(Ⅱ),in the medium of phosphoric acid,can inhibit the color development reaction of DApCM and vanadium(Ⅴ).According to the findings,the reaction conditions and kinetic parameters were studied and a new method of determining micro palladium(Ⅱ) by inhibitory kinetic spectrophotometry was established.The lined range of the determination by this method was 80～480μg/L while detection limits was 80μg/L.The results of determining palladium(Ⅱ) in metallurgical products and catalyst were satisfactory.

关 键 词：阻抑反应 动力学光度法 钯 

分 类 号：O614.823[理学—无机化学]