本研究以省產文旦柚與自柚的外果皮、中果皮、果肉、市售柚類果汁及柚糖為材料，利用高效液相層析法定量其柚皮苷成分，以Hypersil ODS (5μm，250X4.6mm)管柱為固定相，水和乙腈(81:19)之混合液為移動相，流速0.8ml/min，檢測波長為280nm，6,7-dimethoxycoumarin為內標準品。
確效試驗顯示，此方法之精密度尚佳(變異係數為0.3～5.0 %) ，回收率良好(76.9～102.2 %)。定量結果發現文旦柚及白柚所含之柚皮苷成分，以中果皮為最多(分別為23.4 mg/g及16.8mg/g)，外果皮次之，果肉最少。另外柚類果汁、柚糖僅含微量柚皮苷。

High performance liquid chromatography was used to determine the contents　of naringin in the exocarp, mesocarp and pulp of shaddock and white shaddock sold in markets. The analysis was carried out on an Hypersil ODS column (5 μm, 250 x4.6 mm), using water-ace-tonitrile (81:19) as mobile phase at a flow rate of 0.8ml/min. The detection was set at 280 nm and 6,7-dimethoxycoumarin was used as the internal standard.
The precision of this method (C.V. 0.3~5.0%) and the recoveries (76.9~ 102.2%) were satisfactory for various shaddock fruits and juices. The results indicated the contents of naringin in mesocarp were the highest for both shaddock and white shaddock(23.4 mg/g and 16.8mg/g, respectively), whereas exocarp and pulp contained a lesser amount.0nly a small amount of naringin was found in shaddock juices and shaddock candy.