摘要
试验了悬浮液直接进样平台石墨炉原子吸收分光光度法测定湖泊底泥中的铅。方法特征灵敏度为2 1× 10 -11g/ 0 0 0 44 (A·s) ,检测限 (3σ)为 2 5× 10 -11g ,相对标准差 (n =6 )小于 4% ,加标回收率在 90 %～ 110
To determine Pb in lake's sediment with directive sample injection of suspension and graphite furnace AAS. The sensitivity was 2.1×10 -11 g/0.004 4 (A·s) , detection limit(3 σ )was 2.5×10 -11 g, relative standard deviation ( n =6)was 4%, sampling recovery rate was between 90%～110%.
出处
《环境监测管理与技术》
2002年第1期30-31,44,共3页
The Administration and Technique of Environmental Monitoring
