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目的:探讨石墨炉原子吸收分光光度法测定尿中锰含量的方法。方法:尿样加基体改进剂后,直接注入石墨管中,进行尿锰含量测定。结果:方法检出限0.9μg/L;0~20μg/L锰浓度范围内本方法线性良好;相对标准偏差(RSD)为5.17%~7.38%,加标回收率85.6%~104.2%。结论:该法具有操作简便快捷,准确度高,检出限低等优点。
Objective: To explore the method for the determination of manganese in urine by graphite furnace atomic absorption spectrophotometry. Methods: The urine sample plus matrix modifier, directly into the graphite tube, urine manganese content determination. Results: The detection limit of this method was 0.9 μg / L. The method was linear in the range of 0 ~ 20 μg / L manganese. The relative standard deviations (RSDs) ranged from 5.17% to 7.38%. The recoveries were 85.6% -104.2%. Conclusion: The method has the advantages of simple and quick operation, high accuracy and low detection limit.