摘要
提出了用石墨炉原子吸收法连续测定气溶胶中六种重金属的方法.气溶胶样品经处理后,直接用石墨炉原子吸收法测定其中的铜、钴、镍、镐、铅和铬.其检出限在 1.9×10^(-12)～1.6×10^(-10)g,仪器的精密度(RSD)<6.1%,标准加入回收率为90.4%～106.5%,已用于大批气溶胶样品的测定,结果令人满意.
A new method to determine 6 heavy metals in aerosol by GFAAS is reported in this paper. The aerosel samples are digested first with HN03-HC1O4 and then with HNO3-HF, and finely dissolved with HNO3. The resultant solution is analyzed by GFAAS to determine the content of Cu、Co、Ni、Cr、Cd and Pb. The detection limits are in the range from 1. 9×10^(-12)-6×10^(-10)g, the RSD is less then 6. 1% and the recoveries are between 90. 4% and 106. 5%. The proposed method has been applied to the analyses of samples from different districts and the results obtained are satisfactory.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
1997年第8期350-351,357,共3页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
