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.

在实验室丙酮溶解，并线分光光度仪测定枚NRID内炔诺酮剩余量，枚NRID内炔诺酮释放量，模拟分析NRID主成分炔诺酮在山羊体内的释放规律。