Pažitná Alexandra, Spánik Ivan
Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, Bratislava, Slovak Republic.
J Sep Sci. 2014 Feb;37(4):398-403. doi: 10.1002/jssc.201301151. Epub 2014 Jan 16.
The enantiomeric ratios of chiral volatile organic compounds in juniper-flavored spirits produced by various processing technologies in different EU countries were determined by multidimensional GC using solid-phase microextraction and liquid-liquid extraction as a sample pretreatment procedure. In total, more than 260 compounds were detected in studied spirits from which linalool, α-terpineol, 4-terpineol, linalool oxides, α-pinene, and verbenone were selected for enantiomeric separation. The significant differences in enantiomeric ratio of linalool and cis-linalool oxide allowed us to distinguish between samples produced in Slovakia and the United Kingdom from those produced in Germany, Czech Republic, and Belgium. The pure enantiomer of trans-linalool oxide was found only in samples from Germany. It was shown that the enantiomeric ratio is independent of the sample treatment procedure, and only small differences up to 1% were observed.
采用多维气相色谱法，以固相微萃取和液液萃取作为样品预处理方法，测定了欧盟不同国家采用各种加工技术生产的杜松子味烈酒中手性挥发性有机化合物的对映体比例。在所研究的烈酒中总共检测到260多种化合物，从中选择芳樟醇、α-松油醇、4-松油醇、芳樟醇氧化物、α-蒎烯和马鞭草烯酮进行对映体分离。芳樟醇和顺式芳樟醇氧化物对映体比例的显著差异使我们能够区分斯洛伐克和英国生产的样品与德国、捷克共和国和比利时生产的样品。反式芳樟醇氧化物的纯对映体仅在德国的样品中发现。结果表明，对映体比例与样品处理程序无关，仅观察到高达1%的微小差异。
