摘要
建立了一种采用微波消解一次样品前处理、原子荧光法依次快速测定食品中汞和砷的方法。通过条件优化，该方法汞和砷的检出限分别为0．023ug／L、0．119ug／L；试样测定精密度（RSD），汞和砷分别为6．2％、3．3％；加标回收率，汞和砷分别在96．0％～105．0％、95．9％～102．5％。标准物质测定结果符合要求。该法简便、快速、灵敏，能够满足食品的检测要求。
In the paper, a microwave digestion-atomic fluorescence spectrometer method for rapidly determining the mercury and arsenic in food was established. By optimizing the conditions （i. e. microwave digestion pre-treatment） ,the detection limits of mercury and arsenic were 0. 023 ug/L and 0. 119ug/L, respectively. The relative standard deviations of sample determination （RSD）of mercury and arsenic were 6.2% and 3.3%, respectively. The recovery rate of samples for mercury and arsenic were 96.0%--105.0% and 95.9%-102.5%, respectively. The testing results with standard material met the requirements. This method was simple, rapid and sensi tive, and could meet the testing requirements of food.
出处
《河南农业科学》
CSCD
北大核心
2010年第2期128-131,共4页
Journal of Henan Agricultural Sciences
关键词
微波消解
原子荧光光谱法
食品
汞
砷
Microwave digestion
Atomic fluorescence spectrometry
Food
Mercury
Arsenic
