海蜇中微量汞的微波消解-原子荧光光谱法测定  

Determination of Trace Mercury in Jellyfish by Microwave Digestion-Atomic Fluorescence Spectrometry

作　　者：刘希光[1] 于华华[1] 赵增芹[1] 李智恩[1] 徐祖洪[1] 李鹏程[1] 

机构地区：[1]中国科学院海洋研究所

出　　处：《分析测试学报》2004年第6期101-103,共3页Journal of Instrumental Analysis

基　　金：中国科学院知识创新工程方向性项目资助课题 (KZCX3 -SW -215)

摘　　要：以冷冻干燥和微波消解相结合的方式处理样品 ,采用冷原子荧光光谱法测定了新鲜海蜇和腌制海蜇不同部位的汞含量。通过试验 ,确定了最佳的样品处理条件和仪器的工作条件。方法简便、快速、准确。检出限为0.015ng·mL -1 ,RSD(n=5)为2.3%～4.2 %,回收率为95%～104%。A method based on cold atomic fluorescence spectrometry for the determination of trace mercury(Hg)in different parts of fresh and salted jellyfish was described.The samples were lyophilized,then miˉcrowave digested.The conditions for sample pretreatment and instrumental operation parameters were optiˉmized.The method is easy to operate,rapid and accurate.The detection limit of Hg was0.015ng·mL -1 .The relative standard deviations of5determinations were2.3%～4.2%and the recoveries were95%～104%.

关 键 词：海蜇 汞 含量测定 微波消解 原子荧光光谱法 食品监测 冷冻干燥 

分 类 号：TS254.7[轻工技术与工程—水产品加工及贮藏工程]