火焰原子吸收光谱法测定醋酸饮料中的锌

Determination of Zinc in Drink with Vinegar by Flame Atomic Absorption Spectrometry

本文用 HNO3+ HCl O4混酸 ( 3+ 1 )消化直饮型苹果醋和白开水 ,在 2 1 3.9nm处用 FAAS测定锌 ,多种离子均无干扰 ,RSD为 1 .2 8%— 1 .85 % ,加标回收率为 1 0 1 %— 1 0 9% ,结果令人满意。

Zinc in applevinegar that can be drinked directly and in plain boiled water is determined by FAAS.The relative standard deviation (RSD) is 1.28%—1.85% and the rate of recovery is 101%—109%.