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由于职业病,吸烟,以及怀疑镉与高血压症有关,致使人们对镉的危害性日益关注,因而血镉的测定显得更为重要.本法测定血镉与用电热原子化的方法一样,关键在于掌握适当的温度和时间,以使镉在未过早地原子化时,把非原子信号减少到最小.在用原子吸收光谱法测定前,把四氟化碳引入气流,进行低温灰化,从而消去有机物.本方法简便、快速、所需灰化时间短、且无任何不良影响.方法将10μl全血置于盛有50μl去离子水的小镍(Delves)杯中,然后在电热板上(110℃)干烘2
Due to occupational diseases, smoking, and suspicion of cadmium and hypertension, causing people to pay more and more attention to the dangers of cadmium, so the determination of blood cadmium is even more important. Determination of blood cadmium with the method of electrothermal atomization, the key lies in Grasp the appropriate temperature and time so that the non-atomic signal of cadmium is reduced to a minimum when it is not prematurely atomized, and prior to its determination by atomic absorption spectroscopy, carbon tetrafluoride is introduced into the gas stream for low temperature ashing Elimination of organics The method is simple, rapid, requires short ashing times without any adverse effects.Methods 10 μl of whole blood is placed in a small Delves cup containing 50 μl of deionized water and then placed on a hot plate ( 110 ℃) Drying 2