微波消解-氢化物发生原子吸收光谱法测定食物中的汞

Determination of Mercury in Food by Microwave Oven Digestion Hydride Generation Atomic Absorption Spectrometry

本文采用微波消解、氢化物发生原子吸收光谱法测定食物中的汞，研究了微波消解样品的最佳条件，并和国家标准消解方法进行了比较，结果令人满意。本方法简便、快速，重现性好，准确度高，灵敏度为０．４３μｇ／Ｌ，检测限为０．３５μｇ／Ｌ，相对标准偏差为２．８％，回收率为９３．５％～１０３．０％。

Mercury in food was determined by microwave oven digestion hydride generation atomic absorption spectrometry.The best condition of digestion was also studied.Furthermore,the way of doing digestion was compared to standard method with stisfactory results.The method is rapid and simple,and of good precision and high accuracy.The sensitivity is 0 43 μg/L.The detection limit is 0 35 μg/L.The relative standard deviation is 2 8% and the recovery is 93 5% 103 0%.