本文提供了一个尿砷的氢化物发生原子吸收光谱法。改进了氢化物发生装置,该发生器具有操作简便快速,重现性好,记忆效应小等特点,系统地研究了砷化氢发生的反应条件及原子化条件,确定了最佳实验参数。方法精密度和准确度好,适用于尿砷的常规分析。用本法对120例正常人尿液进行分析,尿砷含量范围为7.5～249μg/L(95％可信上限为108)。建议尿砷正常值暂订为110μg/L This article provides a urine arsenic hydride generation atomic absorption spectrometry. The hydride generation device is improved. The generator has the advantages of simple and fast operation, good reproducibility and small memory effect. The reaction conditions and atomization conditions of arsine are systematically studied, and the optimum experimental parameters are determined. The method has good precision and accuracy and is suitable for routine analysis of urinary arsenic. Urinalysis of 120 normal subjects was performed using this method. Urinary arsenic was found to range from 7.5 to 249 μg / L (95% confidence limit, 108). Recommended urinary arsenic normal temporary set at 110μg / L