When a GC/MS system is coupled with a pressurized reactor, the separation efficiency and the retention time are directly affected by the reactor pressure. To keep the GC column flow rate constant irrespective of the reaction pressure, a restrictor capillary tube and an open split interface are attached between the GC injection port and the head of a GC separation column. The capability of the attached modules is demonstrated for the on-line GC/MS analysis of catalytic reaction products of a bio-oil model sample (guaiacol), produced under a pressure of 1 to 3 MPa.
On-line Analysis of Catalytic Reaction Products Using a High-Pressure Tandem Micro-reactor GC/MS
Watanabe, A., Kim, Y-M., Hosaka, A., Watanabe, C., Teramae, N., Ohtani, H., Kim, S., Park, Y-K., Wang, K., & Freeman, R. R. (2017). On-line Analysis of Catalytic Reaction Products Using a High-Pressure Tandem Micro-reactor GC/MS. Analytical Sciences, 33(9), 1085-1089. https://doi.org/10.2116/analsci.33.1085