两种伪品沉香鉴别研究

Identification of Two Batches of Fake Agarwoods

目的:准确判断沉香样品的真伪,提供全面的沉香鉴定方法,详细揭示沉香作假手段。方法:以两批沉香作为对照品,利用薄层色谱分析法(TLC)、气相色谱-质谱联用法(GC-MS)和超高效液相色谱-质谱联用法(UPLC-MS)对两批待测样品进行鉴别分析。结果:S1是在质量较差的沉香中加入大量增塑剂(邻苯二甲酸二(2-乙基己)酯)制造的劣质沉香;S2是非沉香源植物中加入沉香提取物制成的假冒产品。结论:目前市场上这两种作假手段较为常见,建议买家购买价格较高的沉香前先找权威的沉香鉴定机构鉴定后再购买。

Objective：In order to judge the authenticity of agarwood samples accurately, provide comprehensive approaches to the i- dentification of agarwood, and reveal detailed false means of agarwood. Methods： Two batches of agarwoods were regards as control samples, and TLC, GC-MS and HPLC-MS were used to identified two samples. Results：The results of the three methods were con- sistent with the conclusion：S1 was a low-quality agarwood which has been added a lot of plasticizer （bis（2-ehtylhexyl）phthlate）, and S2 was a false product made from a plant different from agarwood source tree,which has been added some extracts of agarwood. Conclusion：Currently,the above two kinds of false means were common on the market. It was suggested that before purchasing costly product, buyers have better to find authoritative accreditation institution of agarwood to identify the product firstly.