摘要
目的建立用微波消解-电感耦合等离子体质谱(ICP-MS)快速、准确测定鱼肉中铊的方法。方法优化微波消解前处理手段,采用ICP-MS测定样品中铊的含量。结果本方法在0.5～10μg/L范围内线性良好,相关系数(r)=0.999 9,检出限为0.2μg/kg,相对标准偏差(RSD)<10%,加标回收率为80%～99%。结论用微波消解-ICP-MS测定铊是一种灵敏准确、方便快速的检测方法。
Objective To establish a rapid and accurate determination method for detecting thallium in fish.Methods Thallium was determined by optimal microwave-digestion-ICP-MS.Results The linear range of this method was 0.5-10 μg/L（r=0.9999）,detection limit was 0.2 μg/kg,relative standard deviation（RSD） was under 10%,recovery rate was 80%-99%.Conclusion The method of microwave-digestion-ICP-MS was sensitive,accurate,convenient and rapid for determination of thallium.
出处
《中国食品卫生杂志》
北大核心
2012年第4期336-338,共3页
Chinese Journal of Food Hygiene
