Preparation of Multiwalled Carbon Nanotubes/Hydroxyl-Terminated Silicone Oil Fiber and Its Application to Analysis of Crude Oils

Figure 2

The extraction capability of the sol-gel coated MWNTs-TSO-OH fiber in DI-SPME mode and HS-SPME mode with the C₈–C₄₀ standard solution. Peaks: 1, n-octane; 2, n-nonane; 3, n-decane; 4, n-undecane; 5, n-dodecane; 6, n-tridecane; 7, n-tetradecane; 8, n-pentadecane; 9, n-hexadecane; 10, n-heptadecane; 11, n-octadecane; 12, n-nonadecane; 13, n-eicosane; 14, n-heneicosane; 15, n-docosane; 16, n-tricosane; 17, n-tetracosane; 18, n-pentacosane; 19, n-hexacosane; 20, n-heptacosane; 21, n-octacosane; 22, n-nonacosane; 23, n-triacontane; 24, n-hentriacontane; 25, n-dotriacontane; 26, n-tritriacontane; 27, n-tetratriacontane; 28, n-pentatriacontane; 29, n-hexatriacontane; 30, n-heptatriacontane; 31, n-octatriacontane; 32, n-nonatriacontane; and 33, n-tetracontane.