摘要
报道了水杨醛肟化学修饰碳糊 ( SAMCP)电极的制备 ,研究了钯 ( )在该电极上的阴极溶出伏安特性。在 p H2 .6的 NH4Cl底液中 ,钯 ( )在 - 0 .78V( vs.SCE)处有一灵敏的阴极溶出峰 ,峰电流与钯 ( )的浓度在 4 .7× 1 0 -8～ 2 .8× 1 0 -5 mol/L之间呈良好的线性关系。当富集 2 min时检测限为 2 .4× 1 0 -9mol/L。本方法已用于阳极泥中钯的测定。
The preparation of salicylaldoxime modified carbon paste electrode and the behavior of cathodic stripping peak of palladium(Ⅱ) at this electrode was reported. A sensitive cathodic stripping peak of Pd (Ⅱ) appears at -0.78 V ( vs .SCE) in NH 4Cl solution(pH 2.6).The stripping peak current is proportional to the concentration of Pd(Ⅱ) in the range of 4.7×10 -8 ～2.8×10 -5 mol/L.The detection limit is 2.4×10 -9 mol/L with 2 min accumulation. The method was applied to determine Pd (Ⅱ) in anodic mud sample with satisfactory results.
出处
《分析试验室》
CAS
CSCD
2000年第4期40-43,共4页
Chinese Journal of Analysis Laboratory
基金
河南省自然科学基金!资助课题 (9940 3 1 3 0 0 )
关键词
钯
阳极泥
SMACP电极
伏安法
测定
Salicylaldoxime
Modified carbon paste electrode
Palladium
Anodic mud
