土壤样品中镉的形态分析研究  

Analysis of the form of cadmium in soil sample

作　　者：马玲[1] 刘文长[1] 査立新 刘洪青[1] 

机构地区：[1]安徽省地质实验研究所,安徽合肥230001

出　　处：《安徽地质》2010年第4期273-276,共4页Geology of Anhui

摘　　要：采用改进的Tessier连续提取法对武汉地区的土壤样品中镉的形态进行了分析,结果表明土壤中镉主要以离子交换态形式存在,总体看其顺序为离子交换态(包含水溶态)>碳酸盐结合态>铁锰氧化物结合态>腐殖酸结合态>残渣态>强有机结合态,说明土壤中镉较活泼,易于迁移转化,对植物的可给性大,是环境中的重要污染元素。Analysis of the form of cadmium in soil sample from the Wuhan area by improved Tessier sequential extraction indicates that cadmium exists substantially in the form of ion exchange in soil,generally in a state in such order as： ion exchange state（including water-soluble state）carbonate bondFe／Mn oxide bondhumic acid bondresiduestrong organic bond,implying that cadmium is active in soil,opt to migrating and transforming,highly accessible to plants,therefore an important polluting element in environment.

关 键 词：土壤样品 形态分析 镉 

分 类 号：O655.6[理学—分析化学] S151.93[理学—化学]