水中铅的快速光度测定方法研究

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英文篇名：Rapid spectrophotometric determination of lead in water 作者：李光明 英文作者：LI Guangming;Xinzhou Environmental Monitoring Station; 关键词：光度法 ; 快速测定 ; 铅 ; 显色剂 ; 测定效果 英文关键词：spectrophotometric method;;rapid determination;;lead;;chromogenic agent;;determination effect 中文刊名：SDHW 英文刊名：Shanxi Chemical Industry 机构：忻州市环境监测站; 出版日期：2019-04-15 出版单位：山西化工 年：2019 期：v.39;No.180 语种：中文; 页：SDHW201902015 页数：3 CN：02 ISSN：14-1109/TQ 分类号：42-44

摘要

针对原子吸收法和原子荧光法不能实现现场快速测定的缺点,通过实验建立了水中铅的快速光度测定方法,并将其与氢化物发生-原子荧光法对水中Pd的测定进行对比。结果显示,快速光度测定方法测定水中Pd标准曲线的线性相关系数较好,检出限为0.001 0mg/L;RSD<6%,方法精密度良好;加标回收率在85%～102%之间,准确度佳;与原子荧光法相比,测定值没有显著性差异,满足现场快速测定误差要求。
        In this paper,a rapid spectrophotometric method for the determination of lead in water can not be realized by atomic absorption spectrometry and atomic fluorescence spectrometry.The method is compared with that of hydride generation-atomic fluorescence spectrometry for the determination of Pd in water.The results showed that the linear correlation coefficient of Pd standard curve in water was good,the detection limit was 0.001 0 mg/L,RSD<6%,the precision of the method was good,the recovery rate of standard addition was between 85%and 102%,and the accuracy was good.Compared with atomic fluorescence spectrometry,there is no significant difference in the measured value,which can meet the requirement of rapid measurement error in the field.

引文

[1]陈京京.原子荧光法测定水中铅和镉[J].污染防治技术,2018(6):72-74.
    [2]何春晓.分光光度法测定水中铅的含量[J].山东化工,2018(18):62-63,67.