采用水蒸气蒸馏法分别提取江永香柚外黄皮和内白皮中的挥发性成分，经GC-MS联用分析，分别鉴定出61种和22种化合物。江永香柚外黄皮中挥发性成分以柠烯碳氢化合物为主体成分，其中柠檬烯含量占粗精油的76.04%，江永香柚内白皮则以十八碳二烯酸、棕榈酸和七聚氧化乙烯为主体成分。

The essential oil in the outer yellow and inner white peels of Citrus Grandis Planted in Jiangyong (Huan Provience) was extracted by steam distillation. GC-MS analysis showed that 61 and 22 kinds of compounds existed in the essential oil in the outer yellow and inner white peels, respectively. The main components in the essential oil of outer yellow peel were hydrocarbons, among which limonene was found with high content of 76.04%. In white peels, octadecadienoic acid, hexadecanoic acid, and ethylene oxide heptamer were found to be the main compounds.