循环富集-冷蒸气原子吸收法测定食品中痕量汞的研究

STUDY ON THE DETERMINATION OF TRACE MERCURY IN FOODS BY CIRCULATING ENRICHMENTCOLD VAPOUR ATOMIC ABSORPTION SPECTROMETRY

本文以自制的循环富集装置，配以冷原子吸收测汞系统，对痕量汞的测定进行了研究。分析多种食品样品及国家标准物质，得到了满意的结果。

The determination of trace mercury using the selfdeveloped circulating enrichment apparatus with cold vapour atomic absorption spectrometry was investigated.Various experimental conditions were discussed and optimized.The effect of interferences was examined.The developed method is sensitive,accurate,simple and available and has already been used in the analysis of various kinds of food samples and national standard reference materials,and the results obtained were satisfactory.