全血中锰的石墨炉原子吸收光谱直接快速分析法

目的建立全血中锰的直接快速石墨炉原子吸收光谱分析方法。方法硝酸和TritonX-100作为样品混合稀释液,全血用混合稀释液消解乳化后,采用氘灯校正背景,石墨炉原子吸收光谱法自动进样测定。结果方法的线性范围为0～3.0μg/L,相关系数为0.9992,RSD为1.1%～7.7%,加标回收为93.7%～101.0%,方法检出限为0.25μg/L。结论该法准确度、精确度良好,样品不需要消化,污染小,是一种简单、快速、可行的测定全血锰的方法。

Direct and Rapid Analysis of Manganese in Whole Blood by Graphite Furnace Atomic Absorption Spectrometry

Objective]To establish the method of analyzing the manganese in the whole blood by graphite furnace atomic absorption spectrometry（AAS） directly and rapidly.Methods]The samples which were digested and emulsified by sample diluent of nitric acid and TritonX-100 were detected in AAS with a automatic sampling system,using deuterium lamp for background correction.Results]The linear range of the method was 0 ～3.0 μg/L,correlation coefficient was 0.9994,RSD was 1.1% ～7.7%,standard recovery was 93.7% ～ 101.0%,the detection limit was 1.2 μg/L.Conclusion]The method has reliable accuracy and precision,does not have to be digested,and can be used to determine manganese in whole blood simply,rapidly and feasibly.