离子色谱在检测城市环境植物样品的重金属含量中的应用  

Determination of Heavy Metals in Plant Samples From The Urban Environment By Ion Chromatography

作　　者：叶欣[1] 

机构地区：[1]广东省环境监测中心,广东广州510045

出　　处：《科技信息》2010年第21期J0037-J0037,J0052,共2页Science & Technology Information

摘　　要：本文主要阐述了利用离子色谱同步分离及检测城市环境中植物样品中Cu2+、Ni2+、Zn2+、和Mn2+等重金属离子含量的新方法。检测方法中使用了乙二酸-硝酸钠洗脱液进行浓度梯度洗脱,成功分离各金属离子,同时使用电导检测器进行检测。方法检出限低(μg/L),校准曲线线性良好,能应用于检测植物标准样品及城市环境中的植物样品的重金属离子含量。A new method for simultaneous separation and determination of Cu^2＋,Ni^2＋,Zn^2＋ and Mn^2＋ in plant samples from the urban environment by ion chromatography was developed by ion chromatography. In this procedure, all of these metals were separated by a concentration gradient of the eluents containing oxalic acid and sodium nitrate, and detected by conductivity detector. The detection limits of this method were low （~Lg/L）, and the calibration graphs were linear. This technique was validated in analyzing standard references and real samples of plants from the urban environment.

关 键 词：离子色谱 重金属 城市环境 植物样品 

分 类 号：X321[环境科学与工程—环境工程]