UV光谱分析技术在纸张种类鉴别中的应用

UV光谱分析技术可用于纸张种类的鉴别。在提取纸张成分时，用不同试剂及用同一试剂提取的时间不同所得的测试结果有差异。试验结果表明，用甲醇作提取剂，提取3h所得效果最好。根据紫外可见吸收光谱的波形，波长，一阶导数，二阶导数光谱图进行比对分析，将四种类型，19种样品纸进行了分析鉴别。本研究对实际应用有较大的参考价值。

On the Application of UV Spectroscopy for the Identification of the Paper Types

While the paper composition is being recovered, the application of different reagents and dltterentaa ring the recovering time by application of the same reagent leads to different results. Many experiments make it clear that the application of methanol as reagent is the most effective one if the recovering time does not exceed three hours. Based on the wave form and length of the visible absorbing spectrum of ultraviolet ray, the comparison of the figures of the first - order derivative with that of the second - order derivative and their analyzing, four types and 19 kinds of sample paper have been analyzed and identified. This study contains some points referring to the application cases.