建立直接法测定大米中的汞.通过大米中汞的测定研究,用DMA-80测汞仪测定大米中的汞,并与原子荧光光谱法测定结果进行比较,可以作为方法之一.工作曲线0~600 ng,线性良好,实物标样的测定值在定值范围内,加标回收率在96.7%~102.1%,检出限:0.2μg/kg,该方法无需对样品进行前处理,保护环境,可以作为大米中汞的检测方法.%A new analytical method was developed for determination of mercury in rice. Through the study on the determination of mercury in rice, by DMA-80 measured mercury analyzer determination of mercury in rice, and AFS determination results were compared, as one of the methods. Working curve 0-600 ng, good linearity, object values measured at a constant value within the range, and the recovery rate in the 96.7%-102.1%, de-tection limit:0.2μg/kg. This method is no need of sample pretreatment, protect the environment, can be used for determination of mercury in rice.
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