流动注射分光光度法测定海水中痕量重金属  

Determination of Trace Soluble Heavy Metals in Seawater Based on Flow Injection Analysis and Spectrophotometry

作　　者：于腾飞[1] 张燕君[1,2] 毕卫红[1,2] 付兴虎[1,2] 付广伟[1,2] 高明明[1] 

机构地区：[1]燕山大学信息科学与工程学院,河北秦皇岛066004 [2]河北省特种光纤与光纤传感重点实验室,河北秦皇岛066004

出　　处：《光电工程》2015年第4期88-94,共7页Opto-Electronic Engineering

基　　金：河北省科学技术研究与发展计划(14273301D)资助;河北省建设科技研究计划(2012-2073)资助

摘　　要：针对水体中污染较重且含量较高的可溶态痕量重金属镉(Cd2+)、铜(Cu2+)、锌(Zn2+)、镍(Ni2+),提出采用流动注射分光光度法测定海水中痕量可溶性重金属。首先分析了四种重金属离子Cd2+、Cu2+、Zn2+、Ni2+在不同波长下的吸光光谱,然后建立了4水平4因素的正交校正集作为多元线性回归数据分析模型,最后搭建了重金属离子浓度测量装置,检测了海水中的可溶性Cd2+、Cu2+、Zn2+、Ni2+浓度,检测下限可达10-9(ppb)。For the heavy pollution and high content of trace soluble heavy metals Cd^2＋、Cu^2＋、Zn^2＋、Ni^2＋ in waters, a determination method of trace soluble heavy metals in seawater is proposed based on flow injection analysis and spectrophotometry. Firstly, the absorption spectrums of four heavy metal ions are analyzed at different wavelengths. Then, an orthogonal correction set with 4 levels and 4 factors is established as the multiple linear regression analysis model. Finally, the measuring equipment of four heavy metal ions is set up, the concentration of soluble metals Cd^2＋、Cu^2＋、Zn^2＋、Ni^2＋ in waters is measured, and the detection limit at 10^-9（ppb） can be achieved.

关 键 词：重金属 流动注射分析 分光光度法 多元线性回归 

分 类 号：TN247[电子电信—物理电子学]