金花茶挥发性成分的GC-MS分析

Analysis of volatile components in Camellia nitidssima by GC-MS

用水蒸气蒸馏法提取金花茶挥发性成分,气相色谱-质谱联用仪对挥发性组分的化学成分进行分析,结合计算机检索技术及NIST化合物谱库检索进行鉴定,应用气相色谱峰面积归一化法测定各成分的相对含量。共分离出42个组分,鉴定了37个化合物,占挥发性成分总离子流峰面积的93.37%,已鉴定的化合物主要包括安息香酸-2-羟基-甲酯(26.91%)、苯甲醇(5.92%)、顺-八氢戊搭烯(5.56%)、芳樟醇氧化物(4.17%)、苯乙醇(4.01%)、2,6-二甲基-3,7-辛二烯-2,6-二醇(3.52%)、癸基异丁基邻苯二甲酸酯(3.32%)。

The volatile components of Camellia nitidssima, extracted by hydrodistillation, were analysed by gas chromatography-mass spectrometry（GC-MS）. The relative contents of the chemical constituents in the volatile components were quantified by peak area nomalization and NIST database. 42 components were separated and 37 compounds were identified, which comprising 93.3% of the total volatile components. The major components are： Benzoic acid, 2-hydroxy-methyl Ester（26.91%）, Benzyl Alcohol（5.92%）, Pentalene, octahydro-,cis-（5.56%）, cis-Linaloloxide（4.17%）, Phenylethyl Alcoho（4.01%）, 3,7-Octadiene-2,6-diol, 2,6- dimethyl-（3.52%）, Phthalic acid, decyl isobutyl ester（3.32%）.