摘要
本文应用原子荧光光谱法研究了同时测定食品中的砷和汞的技术，用HNO3-HClO4（4：1）混合酸消化样品，等样品处理好之后加入5％硫脲-5％抗坏血酸混合改进剂，并以1％硼氢化钠（NaBH4）为还原剂，在5％的盐酸介质中测定砷和汞，其砷和汞的最低检出量分别为：As：0．12ng／ml，Hg：0．09ng／ml。
In this study, we Arsenic and mercury in food were simultaneously determined with atomic fluorescence spectrometry. Using HNO3-HClO4（4：1） to digest sample, and 1%NaBH4 as reducing agent, the determination were performed in 5% HC1 midia. Detection limit of arsenic and mercury is 0.12ng/mL and 0.09ng/mL respectivery.
