催化极普法侧定食品添加剂──硫磺中痕量砷  

Determination of Trace Arsenic in The Food Additive Suiphur by Catalytic Polarography

作　　者：杨生恕[1] 俞征[1] 

机构地区：[1]贵州大学化学系,贵阳550025

出　　处：《贵州大学学报（自然科学版）》1998年第1期34-38,共5页Journal of Guizhou University:Natural Sciences

基　　金：贵州省科委;教委自然科学基金

摘　　要：硫经氧化溶解，中和后，加入钴（Ⅱ）、硫氰酸钾和抗球血酸，硫中砷产生一灵敏催化波。本文采用微分脉冲极普法研究了各项实验条件。建立了不经分离、直接测定食品添加剂——硫磺中痕量砷的分析方法。该法尚可用于精硫及工业硫中砷的测定。方法简便可靠。At sensitive catalytic wave of rsenie has been obtained afrer a sample was undergoing oxidotion disolution and neutralization, adding Co (Ⅱ), KCNS and ascorbic add. Experimeni conditions using differential pulse polafography has been studied. The direct determintion of trace arsenic in food additive sulphur Without separating was established. This methed was simple and fast.

关 键 词：催化极谱法 砷 微分脉冲极谱法 硫磺 食品添加剂 

分 类 号：TS202[轻工技术与工程—食品科学] TS207.5[轻工技术与工程—食品科学与工程]