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，并用紫外度仪测定枚NRID内炔诺酮，计算枚NRID内炔诺酮释放，模拟析NRID主成炔诺酮在山羊体内的释放规律。