| 高精度便携式X射线荧光光谱仪在污染农田土壤重金属速测中的应用研究 |
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| 引用本文： | 彭洪柳,杨周生,赵婕,宋硙,周通,李柱,胡鹏杰,王朝阳,葛延妍,何鸿浮,黄建宁,吕豪,孙剑,吴龙华.高精度便携式X射线荧光光谱仪在污染农田土壤重金属速测中的应用研究[J].农业环境科学学报,2018,37(7):1386-1395. |
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| 作者姓名： | 彭洪柳 杨周生 赵婕 宋硙 周通 李柱 胡鹏杰 王朝阳 葛延妍 何鸿浮 黄建宁 吕豪 孙剑 吴龙华 |
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| 作者单位： | 安徽师范大学环境科学与工程学院;中国科学院南京土壤研究所土壤环境与污染修复重点实验室;XOS公司;钦州学院资源与环境学院 |
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| 基金项目： | 国家自然科学基金项目（41325003）;中国科学院南京土壤研究所"一三五"计划和领域前沿项目（ISSASIP1613） |
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| 摘 要： | 针对便携式X射线荧光光谱(PXRF)法中的高精度便携式X射线荧光光谱(HDXRF)法进行检出限(Cd元素)、稳定性和土壤标准物质准确性的测试,同时对农田土壤中主要重金属元素Cu、Zn、Pb、Cd和类金属As进行快速测定,并将测定结果分别与原子吸收光谱(AAS)法、原子荧光光谱(AFS)法及电感耦合等离子体发射光谱(ICP-AES)法的测定结果建立线性回归方程,以期分析土壤粒径、水分、有机质及土壤类型对测定结果的影响。结果表明:HDXRF法测定土壤中重金属的稳定性高、准确度高、检测限低,对Cd元素的检测下限为0.27 mg·kg-1。颗粒粒径对土壤重金属浓度测定结果有一定影响,样品过100目筛时的测定结果较理想;土壤含水量对HDXRF法的测定结果影响较大,应保证测试土壤样品干燥;有机质对HDXRF法的测定结果存在影响,但可通过调整方程的常数进行校准。HDXRF法测定值更接近实验室ICP-AES法的测定结果,Cu、Zn、Pb和Cd的决定系数分别为0.997 5、0.996 7、0.961 4和0.995 4;HDXRF法与实验室AFS法测定As的决定系数最高可达0.979 8。相比于实验室测定方法,HDXRF法只需简单的前处理,如风干、研磨等,且HDXRF法测定范围宽,适用于土壤中重金属Cu、Zn、Pb、Cd和类金属As的快速测定,是一种简单、快速、准确、可靠的分析方法。
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| 关 键 词： | 高精度便携式X射线荧光光谱法 重金属 农田土壤 快速测定 |
| 收稿时间： | 2018/4/29 0:00:00 |
Use of high-precision portable X-ray fluorescence spectrometer on the heavy metal rapid determination for contaminated agricultural soils |
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| PENG Hong-liu,YANG Zhou-sheng,ZHAO Jie,SONG Wei,ZHOU Tong,LI Zhu,HU Peng-jie,WANG Zhao-yang,GE Yan-yan,HE Hong-fu,HUANG Jian-ning,L&#; Hao,SUN Jian and WU Long-hua.Use of high-precision portable X-ray fluorescence spectrometer on the heavy metal rapid determination for contaminated agricultural soils[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2018,37(7):1386-1395. |
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| Authors: | PENG Hong-liu YANG Zhou-sheng ZHAO Jie SONG Wei ZHOU Tong LI Zhu HU Peng-jie WANG Zhao-yang GE Yan-yan HE Hong-fu HUANG Jian-ning L&#; Hao SUN Jian and WU Long-hua |
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| Institution: | College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241002, China;Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China,College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241002, China,Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China,XOS, Shanghai 200335, China,Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China,Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China,Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China,Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China,Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China,College of Resources and Environment, Qinzhou University, Qinzhou 535000, China,College of Resources and Environment, Qinzhou University, Qinzhou 535000, China,College of Resources and Environment, Qinzhou University, Qinzhou 535000, China,College of Resources and Environment, Qinzhou University, Qinzhou 535000, China and Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;College of Resources and Environment, Qinzhou University, Qinzhou 535000, China |
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| Abstract: | |
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| Keywords: | high precision portable X-ray fluorescence (HDXRF) heavy metals agricultural soils rapid detection |
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