白玉蜗牛微量元素的测定方法研究

Study of Determination Method of Trace Elements in White Jade Snail

以高压硝化罐硝化样品，采用电感耦合等离子体原子发射光谱（ICP-AES）法和火焰原子吸收（AAS）法分别测定了白玉蜗牛中的Ca，Mg，Fe，Zn，Cu，Co六种微量元素的含量，并对两种分析方法进行分析比较，结果表明，ICP-AES法和AAS法测定的微量元素无显著性差异。方法回收率在92．4％～103．0％之间，相对标准偏差均小于2．98％。实验证明，白玉蜗牛含有丰富的有益微量元素，是一种营养价值极高的绿色食品。

The contents of six trace elements, Ca, Mg, Fe, Zn, Cu and Co, in white jade snail were determined by ICP-AES and AAS using nitrifying method of high pressure nitrifying pot. The results of two analysis methods were compared, showing no obvious differences. The recoveries were 92. 4%-103.0%, and the relative standard deviations were less than 2. 98%. The experiment proved that white jade snail contains rich useful trace elements, and is a kind of green food with high nutrition.