催化过氧化氢氧化杨梅红色素褪色光度法测定痕量锌  

Spectrophotometric Determination of Trace Zinc Based on Its Catalytic Fading Reaction of Red Pigment for Myrica Rubra CV. by Hydrogen Peroxide

作　　者：刘佳铭[1] 林璇[1] 李顺发 

机构地区：[1]漳州师范学院化学系,漳州363000

出　　处：《分析化学》2002年第11期1337-1340,共4页Chinese Journal of Analytical Chemistry

摘　　要：报道了杨梅红色素的提取与性质。基于加热条件下 ,Zn2 + 催化过氧化氢氧化杨梅红色素灵敏的褪色反应 ,提出了测定痕量锌的新方法。所建立的方法对Zn2 + 的线性范围为 0 .2～ 1 .0 μg L。The extraction method and characterization of red pigment for myrica rubra CV.(R) were developed. A new spectrophotometric method for the determination of trace zinc based on the highly sensitive fading reaction of Zn 2+ catalytic oxidation of R by hydrogen peroxide on heating has been proposed. The linear range of the proposed method is 0.2～1.0 μg/L zinc. The method has been successfully applid to the determination of zinc in milk powder and hair samples.

关 键 词：过氧化氢 氧化 裉色光度法 测定 锌 杨梅红色素 催化光度法 痕量分析 

分 类 号：O657.3[理学—分析化学]