在某些海豚的肝脏中积蓄着100ppm以上的硒和汞。当用石墨炉原子吸收法直接测定其中的硒和汞时,采用样品中添加钯的方法,以排除有机物的干扰,从而使汞和硒的测定灵敏度分别提高100倍以上。同时,本文还进一步探讨了在添加钯的情况下。汞对硒测定的干扰以及硒对汞测定灵敏度的增幅作用。 In some dolphins, the liver accumulates more than 100 ppm of selenium and mercury. When direct determination of selenium and mercury by graphite furnace atomic absorption spectrometry, the method of adding palladium to the sample to exclude the interference of organic matter, so that the determination of mercury and selenium were increased by 100 times the sensitivity. In the meantime, this article further explores the addition of palladium. The interference of mercury in the determination of selenium and the increasing effect of selenium on the sensitivity of mercury determination.