目的:建立了尿中铋的微波消解-氢化物发生原子荧光光谱分析方法。方法:利用铋(Ⅲ)与硼氢化钾反应生成BiH3,然后用氩气载入电热石英炉中原子化,根据产生的荧光强度对尿中铋进行定量。结果:该法的线性范围为0.2μg/L～50μg/L,检出限为0.2μg/L,,加标回收率为89%～101.2%,相对标准偏差(RSD)为0.9%～1.5%。结论:该方法简便、灵敏度高、重复性及准确度好,适于尿中铋的测定。 OBJECTIVE: To establish a microwave digestion-hydride generation atomic fluorescence spectrometry method for the determination of bismuth in urine. Methods: Bismuth (Ⅲ) was reacted with potassium borohydride to produce BiH3, which was then loaded into an electric quartz furnace by argon atomization, and the amount of bismuth in urine was quantified according to the fluorescence intensity. Results: The linear range of the method was 0.2μg / L ~ 50μg / L, the detection limit was 0.2μg / L, the recoveries were 89% ~ 101.2%, and the relative standard deviations (RSDs) were 0.9% ~ 1.5% . Conclusion: The method is simple, sensitive, reproducible and accurate, suitable for the determination of bismuth in urine.