The activity of the labeled lipase would decrease under different concentrations of guanidine hydrochloride, and fluorescence spectrum of the labeled lipase could reflect the change of the activity.

• 在盐酸胍变性剂的条件下，荧光标记的脂肪酶活性下降趋势渐缓，荧光光谱能较好的反映脂肪酶的活性变化。