从香叶天竹葵(Pclargonium graneolensL’Herit)挥发油中,分得CF_a、CF_b、I_a、I_b、I_d、I_e等六种化学成份。CF_b经IR、NMR、MS等光谱测定,初步推认,为香草醇甲酯(CF_a)的同分异物体。CF_a经与已知样品对照,确认为香草醇甲酯。I_a经IR测定,并与标准图谱核对,初步确认为正辛烷。I_b、I_d、I_e待阐明结构。为阐明香葵油的活性成份,香叶天竹葵 From the volatile oil of Pclargonium graneoenol L’Herit, six chemical components CF_a, CF_b, I_a, I_b, I_d, and I_e were obtained. CF_b was determined by IR, NMR, MS, and other spectroscopic analyses. It was preliminarily assumed to be a homogenous object of vanillyl methyl ester (CF_a). CF_a was confirmed to be vanillyl methyl ester by comparison with a known sample. I_a was determined by IR and checked against a standard pattern, initially identified as n-octane. I_b, I_d, I_e structure to be elucidated. To elucidate the active ingredients of the sunflower oil,