摘要
采用7步提取法对某地富硒土壤样品进行镉的形态分析,发现镉质量分数较高,镉平均为0.374 mg/kg,最高为0.943 mg/kg。各形态含量差异较大,基本是残渣态>离子交换态>铁锰氧化物结合态>腐殖酸结合态>强有机结合态>碳酸盐态>水溶态,在7种形态中以残渣态、离子交换态、铁锰氧化物结合态3种形态占主导。
Using seven steps extraction, to carry on the cadmium morphological analysis in selenium-rich soil samples, found that cadmium content is higher; the average content of cadmium was 0.374 mg/kg, up to 0.943 mg/kg. Content of each form is different, residual 〉 ion exchange 〉 Fe-Mn oxide 〉 humic acid fraction 〉 strong organic fraction 〉 carbonate fraction 〉 water soluble, among them, residual fraction, ion exchange and Fe-Mn oxide were dominant form.
出处
《吉林地质》
2015年第4期120-121,共2页
Jilin Geology
关键词
富硒土壤
镉
赋存状态
selenium-rich soil
cadmium
occurrence
作者简介
王佳丽（1981-），女，黑龙江牡丹江人，吉林省地质科学研究所工程师．
