CAJ | 학술논문

目的：研究常见喷墨打印文件的拉曼光谱定性检验方法。方法：对市面上常见的22份涉及4个品牌的喷墨打印文件墨迹，采用波长为785 nm的激光器分别进行常规拉曼光谱检验和表面增强拉曼光谱的探索检验，采用514 nm激发光进行常规拉曼光谱检验，并对三种情况下得到的拉曼光谱图进行比较研究。结果：在波长为785 nm的激发光下22份喷墨打印文件墨迹的常规拉曼谱线较平缓、荧光背底高；大部分样品经银溶胶增强后，在1587～1561cm－1和239～248 cm－1位置有一个或者两个明显的谱峰出现；大部分样品在514nm激发光下不使用表面增强技术就能获得较好的谱图。根据墨迹增强前后拉曼谱图中拉曼峰的数量、位置及荧光趋势，22份喷墨打印文件墨迹可以被分为六类。结论：拉曼光谱及其表面增强技术可以用于喷墨打印文件的定性检验。
목적：연구상견분묵타인문건적랍만광보정성검험방법。방법：대시면상상견적22빈섭급4개품패적분묵타인문건묵적，채용파장위785 nm적격광기분별진행상규랍만광보검험화표면증강랍만광보적탐색검험，채용514 nm격발광진행상규랍만광보검험，병대삼충정황하득도적랍만광보도진행비교연구。결과：재파장위785 nm적격발광하22빈분묵타인문건묵적적상규랍만보선교평완、형광배저고；대부분양품경은용효증강후，재1587～1561cm－1화239～248 cm－1위치유일개혹자량개명현적보봉출현；대부분양품재514nm격발광하불사용표면증강기술취능획득교호적보도。근거묵적증강전후랍만보도중랍만봉적수량、위치급형광추세，22빈분묵타인문건묵적가이피분위륙류。결론：랍만광보급기표면증강기술가이용우분묵타인문건적정성검험。
Objective:Study on the examination method of Inkjet printed files by Raman spectroscopy .Method:By comparing the results of the ordinary Raman spectroscopy (514nm excitation and 785nm excitation ) and the SERS (785nm excitation), we can analyze the source of the characteristic peaks .Results:The ordinary Raman spectra in 22 inkjet printed documents (785nm excitation) has lower intensity and high fluorescence back .After silver sol enhancement , there are one or two obvious peaks appeared in 1587~1561 cm-1 and 239~248cm-1on most of the using SERS .According to the number and location of the peaks and the trend of fluorescence on the Ra -man spectra before and after the enhancement of surface , ink appearing in 22 inkjet printed documents can be di-vided into 6 types.Conclusion:Raman spectroscopy and SERS can be used to do qualitative test on Inkjet printed files.