国产的红色墨水多用2种或2种以上的具有共轭双键、且为多环平面结构的酸性染料为色料。不同牌号、同一牌号不同型号的红色墨水中所用染料结构不完全相同。本文分别采用同步扫描荧光光谱法、同步扫描荧光—导数光谱法对26种红色墨水溶液进行了分析。得到了令人满意的结果。实验结果表明,同步扫描荧光—导数光谱法是鉴别墨水的一种简便、快速、可靠的方法。 Domestic red ink and more with two or more than two conjugated double bonds, and the polycyclic structure of the acid dye is a pigment. Different brands, the same brand of different types of red ink used in the dye structure is not exactly the same. In this paper, synchronous scanning fluorescence spectrometry, simultaneous scanning fluorescence-derivative spectroscopy were used to analyze 26 kinds of red ink solution. Satisfactory results have been obtained. The experimental results show that synchronous scanning fluorescence-derivative spectroscopy is a simple, rapid and reliable method to identify ink.