| 基于便携式X射线荧光光谱法的土壤重金属快速检测 |
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| 引用本文： | 杨桂兰,倪晓芳,张长波.基于便携式X射线荧光光谱法的土壤重金属快速检测[J].浙江农业学报,2019,31(11):1903. |
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| 作者姓名： | 杨桂兰 倪晓芳 张长波 |
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| 作者单位： | 1.上海化工研究院有限公司,上海 200062;2.工业(土壤污染修复)产品质量控制和技术评价实验室,上海 200062 |
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| 基金项目： | 上海市科委2018年度社会发展领域项目(18DZ1204101); 上海市科委2017年度研发平台专项(17DZ2290800) |
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| 摘 要： | 考查便携式X射线荧光光谱(PXRF)法对6类典型土壤中重金属Cr、Cu、Zn、As、Pb、Ni进行检测的精密度和准确度,探究其适用性。结果表明,在一定前处理条件下,PXRF法对6类土壤的检测精密度在0.14%~11.40%。以电感耦合等离子体发射光谱(ICP-OES)法的检测结果作为参考,PXRF法对其中5类土壤中重金属元素的检测准确度在75%~125%,基本可以满足土壤重金属快速检测要求,但是对于砖红壤中Cr和低浓度As的检测准确度较低,不能满足实验要求,有必要做进一步研究。
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| 关 键 词： | 土壤 重金属 快速检测 |
| 收稿时间： | 2019-07-08 |
Rapid determination of heavy metals in soils based on portable X-ray fluorescence spectroscopy |
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| YANG Guilan,NI Xiaofang,ZHANG Changbo.Rapid determination of heavy metals in soils based on portable X-ray fluorescence spectroscopy[J].Acta Agriculturae Zhejiangensis,2019,31(11):1903. |
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| Authors: | YANG Guilan NI Xiaofang ZHANG Changbo |
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| Institution: | 1. Shanghai Research Institute of Chemical Industry Co., Ltd., Shanghai 200062, China;
2. Quality Control and Technology Assessment Lab of Industrial (Soil Remediation) Product, Shanghai 200062, China |
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| Abstract: | In the present study, the precision and accuracy of portable X-ray fluorescence spectroscopy (PXRF) in heavy metal (Cr, Cu, Zn, As, Pb and Ni) determination in six typical soils were investigated to reveal its feasibility. It was shown that under the premise of processing, the determination precision of heavy metals in 6 typical soils by PXRF method was within 0.14% and 11.40%. By taking the results of inductively coupled plasma optical emission spectrometry (ICP-OES) method as reference, the determination accuracy of PXRF method in 5 typical soils was within 75% and 125%, which could meet the requirements of rapid determination of heavy metals in soil, but the accuracy of Cr and low concentration of As in latosol was low by PXRF method, which could not meet the requirement and should be further improved. |
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| Keywords: | soil heavy metal rapid determination |
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