提取条件的选择和优化是高效液相色谱对印泥的进行种类识别的关键因素,本文对对国内常见的十种红色印泥的提取条件进行了研究,对实验中运用单一提取剂提取效果不佳的印泥进行了双提取溶剂的探索,进而确定双液提取剂的最佳配比。双液提取剂的探究对印章印文种类识别和形成时间判定方法的研究具有重要意义。 The selection and optimization of the extraction conditions are the key factors for the identification of the type of inkpad by HPLC. In this paper, the extraction conditions of 10 common red inkpad in China were studied. The effect of using single extractant in the experiment was not good Ink double extraction solvent exploration, and then determine the optimal ratio of double-liquid extractant. The research of double-liquid extractant has important significance for the research on the method of identifying the types of seal imprints and determining the formation time.