The product was purified and characterized by gas chromatography, mass spectrograph and infrared spectroscopy.

同时对产物用红外光谱、质谱及气相色谱分析进行了表征。

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Using gas chromatography mass spectroscopy (GC-MS) method, 14% unknown components and contents in pecan oil were determined for the first time.

采用色-质联用仪对山核桃仁油中14%的未知成分及含量进行了确定和分析。

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