采用 GC×GC-QTOFMS 对四种不同花卉中的挥发性化合物进行表征。
Characterization of Volatile Compounds in Four Different Flowers by GC×GC-QTOFMS.
机构信息
Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals/Guangdong Engineering and Technology Research Center for Ambient Mass Spectrometry, Guangdong Institute of Analysis, Guangzhou 510070, China.
Guizhou Provincial Key Laboratory of Mountainous Environmental Protection, Guizhou Normal University, Guiyang 550001, China.
出版信息
Molecules. 2019 Sep 12;24(18):3327. doi: 10.3390/molecules24183327.
Volatile compounds in flowers of , , , and were analyzed using comprehensive two-dimensional gas chromatography-mass spectrometry (GC×GC) coupled with high-resolution quadrupole time-of-flight mass spectrometry (QTOFMS). A significantly increased number of compounds was separated by GC×GC compared to conventional one-dimensional GC (1DGC), allowing more comprehensive understanding of the volatile composition of flowers. In total, 129 volatile compounds were detected and quantified. Among them, hexanal, limonene, benzeneacetaldehyde, 2-nonen-1-ol, phenylethyl alcohol, citronellal, isopulegol, 3,5-dimethoxytoluene, and pyridine are the main compounds with different content levels in all flower samples. 1,2,3-trimethoxy-5-methyl-benzene exhibits significantly higher content in compared to in the other three species, while isopulegol is only found in and .
利用全二维气相色谱-质谱联用（GC×GC）与高分辨四极杆飞行时间质谱（QTOFMS）分析了 、 、 、 的花中的挥发性化合物。与传统的一维气相色谱（1DGC）相比，GC×GC 分离出的化合物数量显著增加，从而可以更全面地了解 的挥发性成分。总共检测和定量了 129 种挥发性化合物。其中，正己醛、柠檬烯、苯乙醛、2-壬烯-1-醇、苯乙醇、香茅醛、异胡薄荷醇、3,5-二甲氧基甲苯和吡啶是所有花样品中含量不同的主要化合物。1,2,3-三甲氧基-5-甲基-苯在 中的含量明显高于其他三种物质，而异胡薄荷醇仅存在于 和 中。
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