有两个可识别的趋势：(1) 2922 和 2855 cm-1 处的峰强度随着浸泡时间的延长而降低，(2) 1652 和 1548 cm-1 处的峰强度随着浸泡时间的延长而增加。 这些特征表明随着浸泡时间的增加，更多的 BSA 在样品表面积累。

There are two identifiable trends: (1) the intensities of the peaks at 2922 and 2855 cm−1 decrease with immersion time, (2) the intensities of the peaks at 1652 and 1548 cm−1 increase with immersion time. These features suggest that more BSA accumulates on sample surfaces with increasing immersion time.