2011•Zhiye yu jiankangRequires access
Determination of Cadmium in Blood by Graphite Furnace Atomic Absorption Spectrometry
Jianfei He
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Abstract
[Objective]To discuss the feasibility for determination of cadmium in blood by Graphite Furnace Atomic Absorption spectrometry.[Methods]Blood samples were acidized by 5% nitrate,the ammonium dihydrogen phosphate and magnesium nitrate were used as mixed matrix modifier and the temperature of ash was elevated to 600 ℃.Graphite furnace atomic absorption spectrometry was used for directly determination[Results]Fo different content samples,the relative standard deviation of precision determination was 3.1%～4.2%,recoveries achieved 92.6%～103.5%.[Conclusion]Graphite furnace atomic absorption spectrometry can be used for determination of cadmium content in blood.Precision and accuracy are in line with experimental requirements,with satisfactory results.