傅里叶变换红外光谱和近红外傅里叶变换拉曼光谱法无损鉴定中国字画

Rapid and Non-Destructive Identification of Calligraphies by Fourier Transform Infrared Spectroscopy and Fourier Transform Raman Spectroscopy

利用傅里叶变换红外(FTIR)和近红外傅里叶变换拉曼(NIRFTRaman)光谱法鉴定了中国字画,结果表明与荧光光谱法相比,根据谱峰的强度和位置可更容易地将真伪字画区别开来。拉曼光谱和红外光谱相互印证,互相补充,在鉴定中具有快速、准确、操作简单、重复性好、不需对样品进行预处理的优点,适于珍贵字画的无损鉴定。

A rapid and non-destructive method was used to discriminate between calligraphies by means of Fourier transform infrared (FTIR) and FT-Raman spectroscopy in this paper. In order to discriminate two real calligraphies of Ouyang Zhong-shi from two counterfeit ones, the authors investigated the inkpad and the rice paper of the calligraphies by means of FT-Raman spectroscopy and tested the inkpad and the ink mark of the calligraphies by means of FTIR spectroscopy. It could be seen that the tiny, delicated varied chemical components of the real and the counterfeit calligraphies lead to different characters in vibration frequencies of IR and Raman functional groups and also the real calligraphies have the perfect reiteration. So the authors can discriminate between the real and the counterfeit calligraphies. It is proved that FTIR and FT-Raman are useful in the non-destructive identification of calligraphies, and more precise and quicker than traditional approaches.