The oil sample was analyzed by using an Agilent 6890 gas chromatograph equipped with an Agilent mass spectrometric detector, with a direct capillary interface and fused silica capillary column HP-5MS (30 m × 0.32 mm, 0.25 µm film thickness)
The oil sample was analyzed by using an Agilent 6890 gas chromatograph equipped with an Agilent mass spectrometric detector, with a direct capillary interface and fused silica capillary column HP-5MS (30 m × 0.32 mm, 0.25 µm film thickness)