FAAS法测定土壤微量元素Fe、Cu、Zn、Mn、Pb的有效态含量

Determination of the Validation of Trace Elements Fe,Cu,Zn,Mn,Pb in Soil by FAAS

采用DTPA浸取液提取土壤中的Fe、Cu、Zn、Mn、Pb元素,用火焰原子吸收光谱法(FAAS)进行测定.该方法回收率在98.4%～102.4%之间;相对标准偏差小于3.7%;检出限低于0.04 mg·L-1。

The trace elements Fe,Cu,Zn,Mn,Pb in soil was determined by FAAS with DTPA as the extracted solution. The recoveries was ranged from 98.4 % to 102.4 % with RSD 〈 3.7 %. The detection limits were lower than 0.04 mg· L^-1.