The structure and composition of the films before and after heparinization were characterized by Fourier infrared spectra(FT-IR) and X-ray photoelectron spectra (XPS).
利用红外光谱（FT-IR）和X光电子能谱（XPS）的测量结果表征薄膜表面肝素化前后的结构和组成；
The absorption peaks of new groups generated from some crosslinking reactions are found in the FT-IR spectra.
此外，光谱中还出现了一些共价交联反应中所生成的典型的新基团吸收峰。
The FT-IR spectra of the product confirmed the occurence of grafting.
通过FT-IR对接枝产物进行了表征，证实了接枝反应的发生。
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