EDXRF方法在土壤重金属污染评价中的应用  

Application of EDXRF in assessing heavy metal pollution in soil

作　　者：滕彦国[1] 庹先国[2,3] 倪师军[4] 张成江[4] 程渤[4] 

机构地区：[1]北京师范大学环境科学研究所 [2]中国地质大学地球科学与资源学院 [3]成都理工大学核工系成都610059 [4]成都理工大学核工系

出　　处：《核技术》2003年第6期440-443,共4页Nuclear Techniques

基　　金：科技部科技型中小型企业技术创新基金(00C26215100409);中国地质调查局国土资源大调查项目(200120190098);四川省青年科技基金资助

摘　　要：高灵敏度CIT-3000型能量色散X射线荧光(EDXRF)分析仪采用低能X光管和同位素源双激发方式,以电致冷半导体探测器作为探测系统,使该分析仪具有分辨率高、检出限低、分析元素多的特点。采用该仪器成功地分析了攀枝花地区土壤中重金属的含量,评价了该区土壤重金属污染的特征,结果表明该区重金属污染主要与工矿活动有关。A high sensitive EDXRF analyzer is made up with a double exciting apparatus including low energy X-ray tube and isotope source, and an electrically cooled Sin-PIN detector. The analyzer is characterized of high en-ergy resolution and low detection limit. Heavy metal contents in soil of the Panzhihua region were analyzed by the EDXRF analyzer. The results show that the contaminated soil was mainly distributed in the industrial and mining area.

关 键 词：EDXRF 环境污染评价 重金属 土壤 

分 类 号：P631.63[天文地球—地质矿产勘探]