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食品研究与开发:2017,38(9):161-163
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直接法测定大米中的汞含量
马晓凤,陆源
(镇江市产品质量监督检验中心,江苏 镇江 212000)
Determination of Mercury in Rice by Direct Method
MA Xiao-feng , LU Yuan
(Zhenjiang Center for Products Quality Supervision & Inspection, Zhenjiang 212000, Jiangsu, China)
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投稿时间:2016-08-12    
中文摘要: 建立直接法测定大米中的汞。通过大米中汞的测定研究,用 DMA-80 测汞仪测定大米中的汞,并与原子荧光光 谱法测定结果进行比较,可以作为方法之一。工作曲线 0~600 ng,线性良好,实物标样的测定值在定值范围内,加标回收 率在 96.7 %~102.1 %,检出限:0.2 μg/kg,该方法无需对样品进行前处理,保护环境,可以作为大米中汞的检测方法。
中文关键词: DMA-80测汞仪  大米  
Abstract:A new analytical method was developed for determination of mercury in rice. Through the study on the determination of mercury in rice, by DMA-80 measured mercury analyzer determination of mercury in rice, and AFS determination results were compared, as one of the methods. Working curve 0-600 ng, good linearity, object values measured at a constant value within the range, and the recovery rate in the 96.7 %-102.1 %, de- tection limit: 0.2 μg/kg. This method is no need of sample pretreatment, protect the environment, can be used for determination of mercury in rice.
文章编号:201709036     中图分类号:    文献标志码:A
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