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

2013; American Chemical Society; Volume: 61; Issue: 3 Linguagem: Inglês

10.1021/jf303793t

1520-5118

Liang Zhu, Jianping Yan, Zhiqiang Zhu, Ouyang Yongzhong, Xinglei Zhang, Wenjun Zhang, Ximo Dai, Liping Luo, Huanwen Chen,

Forensic Fingerprint Detection Methods

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.