Analytical Sciences

Abstract − Analytical Sciences, 33(9), 1085 (2017).

On-line Analysis of Catalytic Reaction Products Using a High-Pressure Tandem Micro-reactor GC/MS
Atsushi WATANABE,*1 Young-Min KIM,*1,*2 Akihiko HOSAKA,*1 Chuichi WATANABE,*1 Norio TERAMAE,*1,*3 Hajime OHTANI,*4 Seungdo KIM,*2 Young-Kwon PARK,*5 Kaige WANG,*6 and Robert R. FREEMAN*7
*1 Frontier Laboratories Ltd., 4-16-20, Saikon, Koriyama, Fukushima 963-8862, Japan
*2 Department of Environmental Sciences and Biotechnology, Hallym University, Chuncheon, 24252, Korea
*3 Department of Chemistry, Graduate School of Science, Tohoku University, Aoba, Sendai 980-8578, Japan
*4 Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
*5 School of Environmental Engineering, University of Seoul, Seoul 02504, Korea
*6 RTI International, 3040 Cornwallis, Research Triangle Park, NC 27709, United States
*7 Frontier Laboratories USA, 3446 Tah-Nee Way, El Dorado Hills, CA 95762, United States
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.