Identification of Wood between Phoebe Zhennan and Machilus Pingii Using the Gas Chromatography-Mass Spectrometry Direct Injection Technique
Identification of Wood between Phoebe Zhennan and Machilus Pingii Using the Gas Chromatography-Mass Spectrometry Direct Injection Technique
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DOI：
10.1255/ejms.1226
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发表时间：
2013-06
影响因子：
1.3
通讯作者：
Bin Xu;Tao Zhu;Jingya Li;Shuai Liu
中科院分区：
文献类型：
--
作者：
Bin Xu;Tao Zhu;Jingya Li;Shuai Liu
采用直接进样气相色谱-质谱联用技术（GC-MS）对两批具有特征气味的木渣（Phoebe zhennan）和木渣（Machilus pingii）进行了鉴别。基于获得的GC-MS指纹图谱，通过相关系数、层次聚类和特征成分分析评价样品之间的相似性。结果表明：两种木材的总离子色谱存在明显差异，相关系数较低；而同一种不同批次间的关系则相反；同时，层次聚类分析与特征成分分析也显示出一种相互关系。所有的分析方法都达到了两种木材之间的识别目标，验证了该技术可以用于识别具有特征气味的不同树种木材。
In this paper, the technique of direct injection gas chromatography-mass spectrometer (GC-MS) was employed to discriminate between two batches of wood (Phoebe zhennan and Machilus pingii) with characteristic smells. Based on the GC-MS fingerprints obtained, similarities between samples were evaluated via correlation coefficient, hierarchical clustering and characteristic constituents analysis. The results showed that distinct differences in total ion chromatograms existed between the two species of wood and their correlation coefficients were low; however, the relationship between the same species of different batches showed the opposite; meanwhile, the analysis of hierarchical clustering and characteristic constituents also demonstrated an interrelationship. All the analytical methods achieved the goal of identification between the two species of wood, which verified that the technique can be used to identify different species of wood with characteristic smells.