Austrian Institute of Technology GmbH-AIT, 2444 Seibersdorf, Austria.
Rapid Commun Mass Spectrom. 2009 Dec;23(23):3688-92. doi: 10.1002/rcm.4309.
Most of the coniferous wood of non-European origin that is imported into the European Union (EU) has to be inspected phytosanitarily, to prevent the introduction and spread of harmful pests in EU territory. Wood importers have been caught declaring Siberian larch wood as being of European origin to save the costs of the inspection. Therefore, an unequivocal method has to be developed in addition to the traditional analysis of the tree ring density to identify incorrect declarations of larch wood origin. For this purpose, delta18O and delta13C analyses have been carried out to check if Siberian larch wood can be discriminated from European larch. Measurements have been carried out on bulk wood samples, as the method has to be designed to be as simple as possible. The results show an overlapping of the Siberian and Austrian delta13C, and no overlapping for the delta18O values.
大多数非欧洲产地的针叶木进入欧盟（EU）都需要进行植物检疫检查，以防止有害病虫害传入和传播到欧盟境内。木材进口商为了节省检查成本，曾被发现将西伯利亚落叶松木材申报为欧洲产地。因此，除了传统的树木年轮密度分析外，还需要开发一种明确的方法来识别落叶松木材产地的虚假申报。为此，进行了 delta18O 和 delta13C 分析，以检查西伯利亚落叶松木材是否可以与欧洲落叶松区分开来。测量是在散装木材样本上进行的，因为该方法必须尽可能简单。结果表明，西伯利亚和奥地利的 delta13C 存在重叠，而 delta18O 值则没有重叠。
