中文摘要：

为了提供识别花梨木品种的新思路和新方法,采用红外光谱分析方法,对越柬紫檀、刺猬紫檀、印度紫檀、大果紫檀、鸟足紫檀5种花梨木的一维红外光谱（FTIR）、二阶导数光谱（SDIR）、二维相关红外光谱（2DIR）进行对比分析。结果表明：1）在FTIR谱图中,5种花梨木在781 cm-1处的差异可以把越柬紫檀和刺猬紫檀与其他3种花梨木区分开;2）在SDIR谱图中,刺猬紫檀在1 179 cm-1处存在1个吸收峰;大果紫檀在781 cm-1处存在吸收峰;鸟足紫檀在1 351、1 299、1 147、1 131、938 cm-1处都有明显的吸收峰,而印度紫檀没有吸收峰;3）在2DIR谱图中,1 100、1 150、1 258 cm-1处的差异可以将刺猬紫檀与其他4种花梨木区分开,1 467、1 518 cm-1处的差异可以把越柬紫檀、刺猬紫檀与鸟足紫檀区分开来。单独使用2DIR识别方法并不能把5种花梨木完全区分,但将FTIR、SDIR、2DIR这3种方法结合可以实现5种花梨木的区分,也有助于红木树种的无损识别。

英文摘要：

In this paper we proposed the infrared spectrum analysis method in order to provide a new idea for identification of rosewood species. Five kinds of rosewood,Pterocarpus cambodianus,P. erinaceus,P.indicus,P. macarocarpus and P. pedatus were explored by FTIR,second derivative IR（ SDIR） and two dimensional correlation infrared（ 2DIR） spectroscopy. The results showed that： 1） The difference at 781cm-1in the FTIR spectrum could differentiate P. cambodianus and P. erinaceus from the other three kinds of rosewood. 2） In the SDIR,an absorption peak at 1 179 cm-1existed for P. erinaceus,that of P.macarocarpus occurred at 781 cm-1,P. pedatus had obvious absorption peaks at 1 351,1 299,1 147,1 131 and 938 cm-1,while P. indicus had no absorption peaks. 3） In the 2DIR,the differences at1 100,1 150 and 1 258 cm-1could separate P. erinaceus from the other rosewood; the differences at1 467 and 1 518 cm-1could distinguish P. cambodianus,P. erinaceus and P. pedatus. Applying SDIR solely could not distinguish these rosewood completely,but a combination of FTIR,SDIR and 2DIR could identify all these five kinds of rosewood and provide a new way for non-destructive detection of rosewood.