亚化学计量放射性同位素稀释法测定人发和尿液中的微量锌

SUBSTOICHIOMETRY AND RADIOACTIVE ISOTOPIC DILUTION DETERMINATION OF TRACE CONTENT OF ZINC IN MANS' HAIR AND URINE

一、前言 人体内含有许多微量元素。它们直接影响着人体的生理活动,对人体的健康有着十分重要的意义。例如元素锌,它是许多重要酶的辅基成分,其作用在于控制含酶组织的活力,同时控制核酶和蛋白质的合成速率。微量元素是细胞代谢要素,联系着所有生命过程。较大手术和心肌梗塞的患者,血清中Cu含量上升,Zn含量下降;弱智儿童头发的锌含量较正常儿童偏低。

This experiment has been successfully used in substoichiometry and isotopic dilution for determining trace content of zinc in mans' hair and urine. Experimental results are compared with those using others methods.