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| WDXRF法测定污染土壤和沉积物中金属元素 |
| Determination of Metallic Elements in Contaminated Soil and Sediment by WDXRF |
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| DOI： |
| 中文关键词: 金属元素 Ｘ射线荧光光谱法 土壤 沉积物 |
| 英文关键词: Metallic elements X-ray fluorescencespectrometry Soils Sediments |
| 基金项目:安徽省地方标准制修订“转移、倾倒和填埋固体废物类环境事件快速监测技术规程”基金资助项目（2020-2-122） |
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| 中文摘要: |
| 采用土壤稀释〖CD*2〗波长色散X射线荧光光谱法（WDXRF）测定污染土壤和沉积物样品中的重金属和As，解决了由于元素含量高超出工作曲线测定范围产生较大误差的问题，确保测定结果的有效性。通过标准物质、实际样品的方法比对评估方法的准确度和精密度，该方法测定标准样品中多个无机元素的分析结果均满足国标准确度要求，与常规ICP OES法测定值一致，相对偏差均＜4.5%。 |
| 英文摘要: |
| The method of soil dilution WDXRF was used to determine heavy metals and As in contaminated soil and sediment samples, which solved the problem of large error caused by high content of elements beyond the measurement range of the working curve, and ensured the validity of the determination results. The accuracy and precision of the method were evaluated by comparing the measurements of reference materials and actual samples. The results of several elements in standard samples determined by this method all met the accuracy requirements of national standard, and were consistent with those by conventional ICP OES method, with relative deviation of ＜4.5%. |
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