Preparation of Multiwalled Carbon Nanotubes/Hydroxyl-Terminated Silicone Oil Fiber and Its Application to Analysis of Crude Oils
Figure 5
Effect of NaCl added on extraction. Conditions: extraction temperature, 70°C; extraction time, 30 min; desorption time, 5 min; magnetic stirring. Peaks: 1, nC17-alkane; 2, pristine; 3, naphthalene; and 4, 5-α-Androstane.
