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本文报告了氢化发生原子吸收光谱测定食品中砷的方法。ＶＡ－９０气态原子化装置与固定原子吸收分光光度计 ＷＦＸ－ＩＦ２配套，以峰高为测量方式，可测定ＰＰｂ级汞、砷、硒以及锑、锡、锗、碲、铋和铅，具有灵敏度高（砷特征浓度为０．３μｇ／Ｌ）、曲线线性好（砷回归系数为０．９９９２）、准确度高（砷回收率为９３．７％～１０５％），重现性好（砷的相对标准偏差１．４％～３．０％）、通用性强之特点。
In this paper, a method for the determination of arsenic in foods by hydrogenation atomic absorption spectrometry has been reported. The VA-90 Gaseous Atomization Unit is equipped with the fixed atomic absorption spectrophotometer WFX-IF2 to measure PPb levels of mercury, arsenic, selenium and antimony, tin, germanium, tellurium, bismuth and lead with peak heights as a measure of sensitivity High (arsenic concentration of 0.3μg / L), good linearity curve (arsenic regression coefficient of 0.9992), high accuracy (arsenic recovery of 93.7% ~ 105%), good reproducibility Relative standard deviation of 1.4% ~ 3.0%), versatility of the characteristics.