红松和落叶松是分布在我国东北林区的主要用材树种。其锯屑、刨花等微细碎料是制造再生木材产品的重要原料。M(?)ule反应仅能鉴别针阔叶材微细碎料差别。但不能鉴别同是针叶材或同是阔叶材微细碎料差别。本文用红外光谱法研究了同属种木材的碎料鉴别。以红松和落叶松为例分析了它们化学组份及结构区别找出了它们之间光谱差异,从而为鉴别同属种木材碎料探求了新的方法。 光谱分析表明,落叶松在1640、780、720cm~(-1)有特征吸收峰,说明落叶松较红松含有较多的苯环共轭羰基和具有分枝结构的阿拉伯半乳聚糖。 Korean pine and larch are the main timber species distributed in the northeastern region of China. Its sawdust, shavings and other fine debris is the manufacture of recycled wood products, an important raw material. M (?) Ule reaction can only identify the differences between fine and broad leaved nuggets. But can not identify the same softwood or hardwood material is the same difference. In this paper, using infrared spectroscopy to identify the same species of wood debris identification. Take the korean pine and larch as examples, the differences of their chemical composition and structure were analyzed to find out the difference of the spectra between them, so as to find out a new method for the identification of the same species of wood scrap. Spectral analysis showed that larch had characteristic absorption peaks at 1640, 780 and 720 cm -1, indicating that Larix principis-rupprechtii contained more benzene ring-conjugated carbonyl groups and branched arabinogalactan.