测汞仪直接测定食品中总汞  

Direct Determination of Total Mercury in Food by Mercury Analyzer

作　　者：周宇 贾宏新 郑凤娥 黄旭 

机构地区：[1]辽宁省食品检验检测院,沈阳11000 [2]沈阳市产品质量监督检验院,沈阳110000

出　　处：《中国无机分析化学》2015年第3期5-7,共3页Chinese Journal of Inorganic Analytical Chemistry

摘　　要：建立了食品中总汞快速准确的测定方法。使用测汞仪,采用样品直接进样法,对芹菜、大葱、鸡肉等10种标准物质中的汞含量进行了测定,结果表明,在0.2~100ng范围内线性良好,10种标准物质的检测结果均在标示值范围内。使用测汞仪直接测定食品中总汞含量,具有灵敏度高、快捷、不受前处理影响等优点,便于推广,适用于各类食品中总汞的快速测定。A rapid and accurate method for the determination of total mercury in food was established. The samples were analyzed using a model Hydra II mercury analyzer by direct injection. Experimental conditions were obtained by the analysis of 10 kinds of the certified reference materials such as celery, onion, chicken, etc. The results showed that a good linearity was demonstrated in the range of 0. 2 100 ng, and all the found values were in good accordance with the certified values. The proposed method has high sensitivity, quick analytical speed, and it had no effect by sample pretreatment. This approach provides a viable alternative for rapid determination of total mercury in food.

关 键 词：总汞 测汞仪 直接进样 

分 类 号：O657.3[理学—分析化学] TH744.12[理学—化学]