微波消解-氢化物发生-原子荧光光谱法同时测定鱼罐头中砷和汞  

Simultaneous determination of arsenic and mercury in canned fish by microwave digestion-hydride generation-atomic fluorescence spectrometric

作　　者：唐开红[1] 

机构地区：[1]长春市疾病预防控制中心理化科,吉林长春130033

出　　处：《中国卫生工程学》2012年第5期427-427,430,共2页Chinese Journal of Public Health Engineering

摘　　要：目的建立一种同时测定鱼罐头中砷和汞含量的方法。方法微波消解样品后,用氢化物发生-原子荧光光谱法测定砷和汞含量。结果砷、汞测定液的检出限分别为0.049μg/L、0.017μg/L,回收率分别为98.2%～106.2%、98.4%～104.2%;相对标准偏差分别为1.7%～2.8%、1.8%～3.1%。结论本实验方法简单快速,重现性好,准确度高,线性范围宽,适合测定鱼罐头中砷和汞的含量。Objective To establish a method for simultaneously measuring arsenic and mercury in canned fish.Methods After the sample digested by microwave,the method of hydride generation-atomic fluorescence spectrometric was used to measure the content of arsenic and mercury.Results The detection limits of arsenic and mercury were 0.049 μg/L and 0.017 μg/L,the recovery rate of the method was arsenic from 98.2% to 106.2%,and mercury from 98.4% to 104.2%.The relative standard deviation（RSD） of the method was arsenic from 1.7% to 2.8% and mercury from 1.8% to 3.1%.Conclusion The method is simple,rapid,reproducible,high accuracy,wide linear range and is suitable for simultaneously measuring arsenic and mercury in canned fish.

关 键 词：氢化物发生-原子荧光光谱法 微波消解 砷 汞 

分 类 号：R995[医药卫生—毒理学] O657[医药卫生—药学]