不同提取法对比研究水稻土中重金属赋存形态  

Comparative Study of Heavy Metal Speciation in Paddy Soils by Different Extraction Methods

作　　者：林宗亮 陈德锴 林智涛 蔡志荣 LIN Zong-liang;CHEN De-kai;LIN Zhi-tao;CAI Zhi-rong(College of Environment and Public Health,Xiamen Huaxia University,Fujian Xiamen 361024;Key Laboratory of Fujian Universities for Environmental Monitoring,Fujian Xiamen 361024,China)

机构地区：[1]厦门华厦学院环境与公共健康学院,福建厦门361024 [2]环境监测福建省高校重点实验室,福建厦门361024

出　　处：《广州化工》2024年第12期101-103,共3页GuangZhou Chemical Industry

基　　金：环境监测福建省高校重点实验室开放研究课题资助项目(HJJC2006);福建省大学生创新创业训练计划项目(S202112709009)。

摘　　要：为对比不同提取法对水稻土中重金属的提取效果,分别用HCl、CaCl_(2)和EDTA提取-电感耦合等离子体质谱法(ICP-MS)分析测定九龙江流域水稻土中重金属的含量。结果表明:不同提取法所得到的水稻土中重金属的提取量、提取率和污染评价结果均具有较大差异。不同提取法对水稻土中7种重金属的提取量和提取率大小顺序均为HCl>EDTA>CaCl_(2)。不同提取法得出的水稻土中重金属的污染评价结果存在较大差异,亟需确定一种用于研究水稻土中重金属赋存形态的标准方法。In order to compare the extraction effects of different extraction methods on heavy metals in paddy soils,the contents of heavy metals in paddy soils in the Jiulong River basin were extracted with HCl,CaCl_(2) and EDTA,respectively,and determined by inductively coupled plasma mass spectrometry(ICP-MS).The results showed that the extraction contents,extraction rates and pollution evaluation results of heavy metals in paddy soil obtained by different extraction methods were significantly different.The extraction contents and extraction rates of the seven heavy metals in paddy soils obtained by different extraction methods were in the order of HCl>EDTA>CaCl_(2).The contamination evaluation results of heavy metals in paddy soils obtained by different extraction methods differed greatly,and there is an urgent need to determine a standard method for studying the speciation of heavy metals in paddy soils.

关 键 词：重金属 赋存形态 单级提取法 水稻土 九龙江流域 

分 类 号：X53[环境科学与工程—环境工程]