工作场所空气中锰及其化合物的火焰原子吸收测定法及其影响因素

Determination of manganese and its compounds in workplace air by flame atomic absorption spectrometry and its influencing factors

以火焰原子吸收法测定工作场所空气中的锰及其化合物,并对操作进行优化和调整。方法线性范围0～2μg/m L,相关系数0. 999 7,最低检出限为0. 07μg/m L,添加标样10μg/m L,加标回收率为98. 4%,滤膜标样AK-QC203-2的相对标准偏差为0. 45%。

This paper uses flame atomic absorption spectrometry to determine manganese and its compounds in the air of.workplace and optimizes and adjusts the operation.The linear range is 0-2μg/mL,the correlation coeffi- cient is 0.9997,the minimum detection limit is 0.07μg/mL,the standard sample is 10μg/mL,the recovery of standard addition is 98.4%,and the relative standard deviation of the filter film standard sample AK-QC203-2 is 0.45%.