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.

在实验溶解，并紫外线分光光度仪测定枚NRID内炔诺剩余量，计算枚NRID内炔诺量，模拟分析NRID主成分炔诺在山羊体内的规律。