莱伯泰科:分析海水鱼鱼肉中总汞和甲基汞含量的一种新方法

2017/10/25 20:14 I 阅读:154

应用领域

食品

检测样品

鱼糜制品

检测项目

重金属

参考标准

·

发布时间

2017/10/25

方案详情

Abstract: In this work we have developed a cost-effectivemethod for the analysis of methyl mercury (MeHg) inseawater fish muscle. The novelty of this method lies in theuse of microwave- assistedextraction with acidic solution (HCl), addition of toluene, and subsequent extraction with cysteine acetate solution where only MeHg is present because of its affinity for cysteine groups. MeHg in cysteine phase and total mercury in the homogenate muscle tissue were determined using a direct Hg analyzer (DMA-80). Validation, precision, and accuracy of the methodwere evaluated and monitored with a tuna fish certified reference material (CRM 463) containing MeHg. Keywords Methyl mercury  Microwave extraction  Mercury  Direct mercury analyzer

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