基体改进剂石墨炉原子吸收法测定尿锰

Matrix modifier GF-AAS determination of urinary manganese

目的：建立用石墨炉原子吸收法测定尿锰的方法。方法：尿样用稀硝酸稀释后,采用热解涂层石墨管,塞曼扣背景,石墨炉原子吸收法测定尿中锰含量。结果：方法的检测限为0.01 ng/ml,回收率为91.5%－108.9%,试验的精密度RSD为4.2%－14.1%。结论：本方法具有快速、准确、灵敏度高等特点,适用于尿中锰含量的测定。

Objective：To establish a method for determination of manganese in urine by GFAAS.Methods：The sample was diluted directly,using the tube A,Zeeman background correction and measured with graphite-furnace atomic absorption spectrometry.Results：A detection limit was 0.01 ng/ml,recovery rate 91.5%～108.9% and the relative deviation 4.2%～14.1%.Conclusion：The method is simple and nice and can be recommended for the determination of manganese in urine.