Wang Z G, Sun S Q, Zhou Q, Wang C H
Graduate School, Chinese People's Public Security University, Beijing 100038, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2001 Dec;21(6):794-7.
36 kinds of black roller pen inks collected from Chinese market were analyzed by NIR FT-Raman spectroscopic technique and they were divided into 10 groups (from A to J group) according to their characteristic Raman spectra. Based on studying main component of roller pen inks and peculiarity of Raman spectrum by documents, the main Raman peaks of each group of roller ball inks were interpreted particularly. It have also been investigated that the influence factors from paper matrix, humidity of the samples, laser power and writing time, especially the forth item showed some relationships of the peak intensity ratio with the relative age of inks. This method is speediness, convenience, high sensitivity and no ink-extraction process. The insufficiency of the method is that fluorescence and heat background comes forth when a few samples were irradiated by laser.
采用近红外傅里叶变换拉曼光谱技术对从中国市场收集的36种黑色圆珠笔油墨进行了分析，并根据其特征拉曼光谱将它们分为10组（从A组到J组）。通过文献研究圆珠笔油墨的主要成分和拉曼光谱特性，对每组圆珠笔油墨的主要拉曼峰进行了详细解释。还研究了纸张基质、样品湿度、激光功率和书写时间等影响因素，特别是第四项显示出峰强度比与油墨相对使用时间之间的一些关系。该方法快速、方便、灵敏度高且无需油墨提取过程。该方法的不足之处在于，当用激光照射少数样品时会出现荧光和热背景。
