微波消解-火焰原子吸收光谱法测定板栗壳中6种微量元素

Determination of Six Trace Elements in Chestnut Spiny Involucre by Flame Atomic Absorption Spectroscopy

用浓硝酸微波消解样品,火焰原子吸收光谱法测定板栗壳中Fe、Cu、Mg、Ca、Mn、Zn6种微量元素,板栗壳中含有丰富的人体必需微量元素,回收率在98.2%—102.0%之间。本法简单、准确,结果令人满意。

The six trace elements,Ca,Mg,Zn,Fe,Cu and Mn in chestnut spiny involucre were digested by microwave with nitric acid and determined by flame atomic absorption spectroscopy （FAAS） with calibration curve method. The plenty of trace elements which are necessary for body exist in chestnut spiny involucre. The recovery was between 98. 2% and 102. 0%. The result is accuracy and satisfactory.