The release patterns of norgestrel in NRID in vivo were simulated after the norgestrel in NRID was dissolved by acetone and the rest of norgestre was determined by Ultraviolet Ray Spectrometer.

在实验室用丙酮溶解，并用紫外线分光光度仪测定NRID炔诺酮剩余量，计算NRID炔诺酮释放量，模拟分析NRID主成分炔诺酮在山羊体的释放规律。