目的:分析石墨炉原子吸收法测定尿中锰过程中不确定度的主要来源,判定分析方法建立的可行性和测量结果质量的依据。方法:采用石墨炉原子吸收法快速测定尿液中锰的浓度,同时构建数学模型,对各部分分量进行分析。结果:测定尿锰结果为30.70±1.39μg/L,美国伯乐尿金属质控品锰含量为32.8±6.5μg/L。结论:石墨炉原子吸收法快速测定尿液中锰结果令人满意。 OBJECTIVE: To analyze the main sources of uncertainty in the determination of manganese in urine by graphite furnace atomic absorption spectrometry, and to determine the feasibility of establishing the analytical method and the basis of the quality of measurement results. Methods: The concentration of manganese in urine was rapidly determined by graphite furnace atomic absorption spectrometry. At the same time, a mathematical model was constructed and the components of each component were analyzed. Results: The results of urinary manganese determination was 30.70 ± 1.39μg / L, and the content of manganese in American Boleolar metal control was 32.8 ± 6.5μg / L. Conclusion: The rapid determination of manganese in urine by graphite furnace atomic absorption spectrometry is satisfactory.