GC-MS结合保留指数分析巴西甜橙油中挥发性成分

Analysis of Volatile Compounds in Orange Oil from Brazil by GC-MS and Kovats Rention Index

采用气相色谱/质谱联用技术(GC-MS)结合保留指数法分析巴西甜橙油中的挥发性成分,共鉴定出22种主要成分,占总组分的98.02%,其中含量较高的组分为D-柠檬烯(91.01%)、顺式-p-薄荷基-2,8-二烯-1-醇(1.18%)、D-香芹酮(0.85%)、顺式柠檬烯氧化物(0.96%)、香芹醇(0.82%)、α-蒎烯(0.59%)以及β-月桂烯(0.53%)。保留指数的运用能够区分同分异构体化合物,提高定性分析的准确性。

Volatile components in orange oil from Brazil were analyzed by gas chromatography-mass spectroscopy （GC-MS） combined with Kovats retention index （KI）. 22 main volatile compounds were confirmed, which accounted for 98.02% in the aroma components, and compounds with high contents were as follows： D-Limonene （91.01%）, cis-p-Mentha-2, 8-dien-1-ol （1.18%）, D-carvone （0.85%）, c is-Limonene oxide （0.96%）, carveol （0.82%）, a-Pinene （0.59%） and β-Myrcene （0.53%）. By using retention index, the isomers were identified to improve the accuracy of qualitative analysis.