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运用傅里叶变换红外光谱、显微激光拉曼光谱以及紫外-可见光谱仪等多种光谱学手段测定了纸张上蓝色签字笔墨水的光谱,并根据吸收峰的差异对收集到的28种不同品牌、系列的蓝色签字笔进行了分类。同时还结合热重-质谱联用研究了人为老化过程中纸张上签字笔墨水成分的变化。讨论了上述谱学方法在分析鉴别纸张上蓝色签字笔墨水种类及成分的优劣,以及在研究相对书写时间和绝对书写时间中的潜在应用。
The spectra of blue pen ink on paper were measured by Fourier transform infrared spectroscopy, Raman microscopy and UV-Vis spectroscopy. The differences of the absorption peaks were compared between the 28 different collected Brand, a series of blue pen has been classified. At the same time, combined with TG-MS, we studied the change of the composition of the ink on the signature paper on the paper during the process of artificial aging. The pros and cons of the above spectroscopic methods in analyzing the ink type and composition of the blue stylus on the paper are discussed, and the potential applications in studying relative writing time and absolute writing time are discussed.