马齿苋对污染土壤中重金属离子的固定萃取性能  

The Fixed Extraction Performance of Portulaca oleracea for the Heavy Metal Ions in Contaminated Soil

作　　者：袁清香 柴凤兰 李敬 YUAN Qing-xiang;CHAI Feng-lan;LI Jing(Henan Vocational College of Applied Technology,Zhengzhou 450042,China)

机构地区：[1]河南应用技术职业学院,郑州450042

出　　处：《湖北农业科学》2018年第12期30-32,共3页Hubei Agricultural Sciences

基　　金：河南省教育厅科学技术研究重点项目(15A150088)

摘　　要：研究采用火焰原子吸收分光光度计测定污染土壤中生长的马齿苋(Portulaca oleracea)中的重金属铅、镉的含量。结果表明,马齿苋对污染土壤中铅和镉重金属离子具有较强的吸附萃取能力,而且马齿苋对镉的萃取能力强于铅。The content of Pb and Cd in Portulaca oleracea growing in soils contaminated by heavy metal were investigated by flame atomic absorption spectrophotometer（FAAS）. The results showed that P. oleracea had strong extraction performance for the heavy metal ions in contaminated soils. And the extraction performance of P. oleracea to Cd was superior than that to Pb.

关 键 词：重金属 污染土壤 马齿苋(Portulaca oleracea) 草本植物 

分 类 号：S567.21[农业科学—中草药栽培] X53[农业科学—作物学]