流动注射化学发光法测定痕量钯  

DETERMINATION OF TRACE Pd BY FLOW INJECTION CHEMILUMINESCENCE METHOD

作　　者：金芬[1] 陈淑桂[1] 王瑱[1] 

机构地区：[1]吉林大学化学学院,长春130026

出　　处：《化学分析计量》2003年第2期31-32,共2页Chemical Analysis And Meterage

基　　金：国土资源部基金(20002010008026)

摘　　要：在NaOH介质中,H_2O_2能氧化鲁米诺(Luminol)产生化学发光,在OP乳化剂存在下,金属钯能催化该反应,据此建立了Luminol-NaOH-H_2O_2-OP-Pd(Ⅱ)化学发光体系,用流动注射化学发光法测定钯,检出限为4.1ng/mL,Pd(Ⅱ)浓度在1.0×10^(-8)～1.0×10^(-6)g/mL范围内与发光强度呈良好的线性关系,相对标准偏差(n=10)为3.8％。A chemiluminescence method based on the chemiluminescence reaction of luminol -NaOH-H2O2 OP -Pd (Ⅱ) for the determination ot Pd with flow injection technique was developed. The main facts affecting the chemiluminescence reaction were examined. Under the optimum conditions, the linear range for the determination of Pd is 1.0×10-8-1×10-6 g/mL and the detection limit is 4.1 ng/mL The relative standard deviation for the determination (n=10)is 3.89%.

关 键 词：钯 化学发光法 流动注射 痕量分析 测定 过氧化氢 鲁米诺 

分 类 号：O614.823[理学—无机化学] O657.3[理学—化学]