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DMA-80直接测汞仪测定肥料样品中总汞含量
李亚丽1, 唐 杉2,3,魏淑敏4, 张妙然4, 孙蓟锋4, 刘 蜜4, 汪洪1,
(1.中国农业科学院农业资源与农业区划研究所;2.1中国农业科学院农业资源与农业区划研究所,国家化肥质量监督检验中心(北京）,农业农村部农产品质量安全肥料源性因子风险评估实验室(北京）,北京 100081;3.2安徽省农业科学院土壤肥料研究所,合肥 230031;4.中国农业科学院农业资源与农业区划研究所,国家化肥质量监督检验中心(北京）,农业农村部农产品质量安全肥料源性因子风险评估实验室(北京）,北京 100081)
Determination of Total Mercury in Fertilizer Samples by DMA-80 Direct Mercury Analyzer
Li Yali1, TANG Shan2,3, WEI Shumin4, ZHANG Miaorang4, SUN Jifen4, LIU Mi4,WANG HONG1,
(1.Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences;2.1.Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, China National Center for Quality Supervision and Test of Chemical Fertilizers(Beijing), Laboratory of Quality and Safety Risk Assessment for Agricultural Products from Fertilizer Sources, Ministry of Agriculture and Rural Affairs (Beijing), Beijing 100081, China;3..2.The Soil and Fertilizer Institute, Anhui Academy of Agricultural Sciences /Laboratory of Nutrient Cycling, Resources and Environment of Anhui, Hefei, Anhui 230031, China;4.Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, China National Center for Quality Supervision and Test of Chemical Fertilizers(Beijing), Laboratory of Quality and Safety Risk Assessment for Agricultural Products from Fertilizer Sources, Ministry of Agriculture and Rural Affairs (Beijing), Beijing 100081, China)
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投稿时间：2019-10-10 修订日期：2019-11-02
中文摘要: 选择6个化学肥料样品和6个有机肥料样品，利用DMA-80直接测汞仪对肥料中的汞进行了测定。对同一样品添加3种不同汞浓度标准溶液，每组3次重复，测定加标回收率在96%～103%内；DMA-80直接测汞仪与原子荧光光度方法测定结果之间无显著差异；在试验过程中每个肥料样品利用测汞仪直接进样测定6组平行，相对标准偏差小于5.0%；根据多次测定空白数据结果计算方法检出限为0.0137 ng。利用DMA-80测汞仪测定肥料中汞含量的方法具有操作简单、快速高效、检出限低等优点，可用于批量肥料样品中汞含量的快速测定分析。
Abstract:The objective of this study is aimed at establishing a time saving method for determining of the concentrations of mercury (Hg) in fertilizers by DMA-80 direct mercury analyzer. Six organic fertilizer samples and six chemical fertilizer samples were selected. The results showed that the detection limit of the proposed method is 0.0137 μg/kg. The recovery rate was in ranges of 96.6%~103.6% when adding the standard Hg solution to the fertilizer sample. There was no any significant difference of the Hg contents measured by the DMA-80 and the atomic fluorescence spectrometer method The relative standard deviation of determinations for 12 fertilizer samples with 6 repeats per sample was less than 5%. It is suggested that DMA-80 direct mercury analyzer could be used for determining Hg concentration in fertilizer sample. The proposed method saves time and is suitable for the fast and efficient measurement of batch fertilizer samples.
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| Author Name | Affiliation | E-mail |
| Li Yali | Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences | 2720194554@qq.com |
| TANG Shan | Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, China National Center for Quality Supervision and Test of Chemical Fertilizers(Beijing), Laboratory of Quality and Safety Risk Assessment for Agricultural Products from Fertilizer Sources, Ministry of Agriculture and Rural Affairs (Beijing) | |
| WEI Shumin | Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, China National Center for Quality Supervision and Test of Chemical Fertilizers(Beijing), Laboratory of Quality and Safety Risk Assessment for Agricultural Products from Fertilizer Sources, Ministry of Agriculture and Rural Affairs (Beijing) | |
| ZHANG Miaorang | Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, China National Center for Quality Supervision and Test of Chemical Fertilizers(Beijing), Laboratory of Quality and Safety Risk Assessment for Agricultural Products from Fertilizer Sources, Ministry of Agriculture and Rural Affairs (Beijing) | |
| SUN Jifen | Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, China National Center for Quality Supervision and Test of Chemical Fertilizers(Beijing), Laboratory of Quality and Safety Risk Assessment for Agricultural Products from Fertilizer Sources, Ministry of Agriculture and Rural Affairs (Beijing) | |
| LIU Mi | Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, China National Center for Quality Supervision and Test of Chemical Fertilizers(Beijing), Laboratory of Quality and Safety Risk Assessment for Agricultural Products from Fertilizer Sources, Ministry of Agriculture and Rural Affairs (Beijing) | |
| WANG HONG | Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences | wanghong01@caas.cn |
引用文本：
李亚丽,唐 杉,魏淑敏,张妙然,孙蓟锋,刘 蜜,汪洪.DMA-80直接测汞仪测定肥料样品中总汞含量[J].中国无机分析化学,2020,10(3):18-22.
Li Yali,TANG Shan,WEI Shumin,ZHANG Miaorang,SUN Jifen,LIU Mi,WANG HONG.Determination of Total Mercury in Fertilizer Samples by DMA-80 Direct Mercury Analyzer[J].Chinese Journal of Inorganic Analytical Chemistry,2020,10(3):18-22.
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