采用气相色谱（GC）、气相色谱-质谱联用（GC-MS）和13C-核磁共振光谱法（13C-NMR）对土荆芥精油进行综合分析：对热敏性化合物驱蛔脑进行定量测定。
Combined analysis of the essential oil of Chenopodium ambrosioides by GC, GC-MS and 13C-NMR spectroscopy: quantitative determination of ascaridole, a heat-sensitive compound.
作者信息
Cavalli Jean-François, Tomi Félix, Bernardini Antoine-François, Casanova Joseph
机构信息
Université de Corse, Equipe Chimie et Biomasse, UMR-CNRS 6134, Route des Sanguinaires, 20 000 Ajaccio, France.
出版信息
Phytochem Anal. 2004 Sep-Oct;15(5):275-9. doi: 10.1002/pca.761.
A commercial sample of the essential oil of Chenopodium ambrosioides L. from Madagascar was analysed by GC, GC-MS and 13C-NMR. By GC analysis, the major constituents were found to be ascaridole (1) (41.8%), isoascaridole (2) (18.1%), p-cymene (16.2%), alpha-terpinene (9.7%) and limonene (3.8%). However, ascaridole undergoes a partial thermal isomerisation to 2 and hence the amount of 1 is under-estimated by GC analysis. The actual contents of 1 and 2 (55.3 and 4.6%, respectively) were obtained following combined analysis of the sample by GC and 13C-NMR. Several hydroxy- and polyhydroxy-menthanes were identified by 13C-NMR.
对来自马达加斯加的土荆芥精油的一个商业样品进行了气相色谱（GC）、气相色谱-质谱联用（GC-MS）和碳-13核磁共振（13C-NMR）分析。通过GC分析，发现主要成分是驱蛔脑（1）（41.8%）、异驱蛔脑（2）（18.1%）、对伞花烃（16.2%）、α-松油烯（9.7%）和柠檬烯（3.8%）。然而，驱蛔脑会部分热异构化为2，因此通过GC分析，1的含量被低估。通过对样品进行GC和13C-NMR联合分析，得到了1和2的实际含量（分别为55.3%和4.6%）。通过13C-NMR鉴定出了几种羟基和多羟基薄荷烷。
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