《生物学教学》1993年第8期第38页在张安平老师写的一文中,阐述了正常人尿液的复杂成分.本文就一些有价值的特殊人尿液的成分作一介绍.1.绒毛膜促性腺激素:简称HCG,是一种应用十分广泛的蛋白质激素,产生于胎盘合体滋养层细胞.受精后2～3周的孕妇尿中就可检出.以后随着孕期的增加,含量也随之上升,到70天达到高峰.每日尿中可含4～20万国际单位,90天后反而下降至每天0.5～1万国 “Biology teaching” 1993 the eighth period Page 38 in the article written by the teacher Zhang Anping, elaborated the normal human urine complex composition.This article on the composition of some valuable special human urine for an introduction. Chorionic gonadotropin: referred to as HCG, is a widely used protein hormone, produced in the placenta syncytiotrophoblast cells. 2 to 3 weeks after fertilization in pregnant women can be detected in the urine. Later as pregnancy increases, the content But also increased to 70 days to reach the peak of daily urine can contain 4 to 200,000 International Units, 90 days but declined to 0.5 to 1 million countries a day