在毒理学研究中,测定肝、肾中的镉,多用湿法消化。由于干法灰化简单易行,只加少量或不加试剂,有时更为方便。一般认为干法灰化温度超过500℃时,会引起镉的损失,有人用放射性同位素标记试验发现,一些海生物在90℃干燥时镉即有损失,而另一些海生物在高达500℃灰化时,镉也无任何损失。因此干法灰化测定生物材料中的镉时,应进行充分试 In toxicology studies, the determination of liver and kidney cadmium, and more with wet digestion. As dry ashing simple, with only a small amount or without reagents, and sometimes more convenient. It is generally believed that when the dry ashing temperature exceeds 500 ° C, the loss of cadmium will be caused. Some people use radioisotope labeling tests to find that some marine organisms lose cadmium when they are dried at 90 ° C while others are ashed at as high as 500 ° C When cadmium also without any loss. Therefore, dry ashing determination of cadmium in biological materials should be fully tested