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本文用荧光分光光度法对纸张的荧光特性进行了研究。根据其激发光谱、发射光谱和一阶导数光谱、同步扫描光谱的特性,鉴别了同时期不同生产厂家生产、外观相近的同类纸。另外将数理统计中的“假设检验”理论对纸张的荧光强度进行t检验处理,提高了分辨率,为纸张的进一步认定提供了科学依据。同时,根据其光谱特性,确定了纸张中的发光物质。该方法具有检材用量少,操作简便、快速、分辨率高,不损坏检材等特点。
Fluorescence spectrophotometry was used to study the fluorescence characteristics of paper. According to its excitation spectrum, emission spectrum and the first derivative of the spectrum, the characteristics of synchronous scanning spectra, identify the same period different manufacturers, similar appearance of similar paper. In addition, the theory of “hypothesis testing” in mathematical statistics is used to t test the fluorescence intensity of paper to improve the resolution and provide a scientific basis for the further identification of paper. At the same time, according to its spectral characteristics, determine the luminous material in the paper. The method has the advantages of less amount of sample used, simple and quick operation, high resolution, no damage to the inspection material and the like.