全自动烷基汞分析系统测定土壤和沉积中烷基汞分析方法研究  

Research on Determination of Alkyl Mercury in Soil and Sediment by Automated Alkyl Mercury Analytical System

作　　者：杨雪[1] 彭英[1] 陈素兰[1] 王荟[1] YANG Xue;PENG Ying;CHEN Su-lan;WANG Hui(Jiangsu Environmental Monitoring Center,Nanjing Jiangsu 210000)

机构地区：[1]江苏省环境监测中心,江苏南京210000

出　　处：《中国科技纵横》2020年第12期104-105,114,共3页China Science & Technology Overview

基　　金：国家环境保护标准制修订项目(2016-6)。

摘　　要：本方法对土壤和沉积物提取方法进行了优化,对提取时间、陈化时间、干扰条件等方面作了进一步探讨。研究确定了3h为烷基汞最佳消解提取时间;烷基汞在进入环境后,3d左右可达到平衡,在土壤环境中相对比较稳定;土壤样品在完成提取后,消解液需要应尽可能空即分析,无机汞含量较高时,明显会对烷基汞的测定造成干扰。lThis method optimizes the extraction methods of soil and sediment,and further discusses the extraction time,aging time and interference conditions.Three hours is the best time for the digestion and extraction of alkyl mercury,which can reach equilibrium in three days after entering the environment and is relatively stable in the soil environment.After the extraction of soil samples,the digestion solution should be analyzed as soon as possible;when the content of inorganic mercury is high,it will obviously interfere with the determination of alkyl mercury.

关 键 词：烷基汞 土壤 沉积物 提取方法 

分 类 号：X832[环境科学与工程—环境工程]