溶出伏安法测定食品中营养强化剂锌
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[摘要]pH 4.8，锌在HOAc-NaOAc底液中可产生一个灵敏吸附波的最佳条件，应用于测定食品中锌含量，方法简便、快速、灵敏度、回收率较高。
[关键词]锌；食品；溶出伏安法
[中图分类号] R155.5 [文献标识码]B[文章编号]1673-7210(2007)12(b)-114-02
Stripping voltammetry determination of Zinc in food
WANG Huan-ping
(Center for Disease Control and Prevention,Liaocheng 252000,China)
[Abstract] It was reported in this paper that in a buffer solution of HOAc-NaOAc (pH=4.8 ),Zn(Ⅱ) which was usually added as nutritive intensifying agents could be determined successively by stripping voltammetry in food.The proposed method was proved to be accurate,rapid,sensitive and also convenient to operate.
[Key words] Zinc;Food ;Stripping voltammetry
在一定的电位下，锌能在电极上还原成金属汞齐进行预电解富集 ......
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