GC-MS Determination of Chemical Components in Volatile Oil of Psammosilene Tunicoides

The volatile oil in psammosilene tunicoides was extracted by steam distillation,and the chemical components in volatile oil were identified by capillary column GC-MS.The relative contents (in %) of the components were determined using the method of normalization.Seventy-one chromatographic peaks were separated and among which 33 components were identified amounting to 89.62% of the total.Contents of the main compounds were found as follows: hexadecanoic acid (19.25%),3-octacosaneone (15.93%),methyl salicylate (9.73%),9,12-octadecadienoic acid (8.95%),2-naphthylphenylamine (7.91%),9-octadecynoic acid (6.50%),pentacosane (4.26%),pentadecanoic acid (3.81%),tetracosane (3.47%),octacosane (2.41%) and etc.