Differential Analysis of Camphor Wood Products by Desorption Atmospheric Pressure Chemical Ionization Mass Spectrometry

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• 作者：Liang Zhu ; Jianping Yan ; Zhiqiang Zhu ; Yongzhong Ouyang ; Xinglei Zhang ; Wenjun Zhang ; Ximo Dai ; Liping Luo ; Huanwen Chen
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2013
• 出版时间：January 23, 2013
• 年：2013
• 卷：61
• 期：3
• 页码：547-552
• 全文大小：283K
• 年卷期：v.61,no.3(January 23, 2013)
• ISSN：1520-5118

文摘

In the course of this study, desorption atmospheric pressure chemical ionization mass spectrometry (DAPCI-MS) was applied to readily acquire the mass spectral fingerprints of camphor wood and other wood samples under ambient conditions. Characteristic natural analytes, such as camphor and geraniol, were successfully detected in their protonated form and then identified by tandem mass spectrometry (MSⁿ). Further principal component analysis (PCA) and cluster analysis (CA) of the mass spectrometric results allow a confident discrimination of camphor wood products from inferior/fake ones. These experimental findings demonstrate that DAPCI-MS is a valuable tool for differential analysis of untreated camphor wood products with sufficient sensitivity and high throughput.

Keywords:

desorption atmospheric pressure chemical ionization; mass spectrometry; principal component analysis; camphor; cluster analysis