Dear all, I have a question about gas analysis with GC-C-IRMS. I'm trying to do compound specific analysis. In natural gas, methane concentration is very high with respect to the other compounds. I want to see all the compounds in the natural gas at the same run. Because of the Isoprime working signal range, I couldnt see the low concentrated compound together with methane. Any ideas would be greatly appreciated. Thanks, Selda BAYIR Chemical Engineer TPAO Research Center M. Kemal Mah. 2. Cad. No. 86 06520 Esentepe/ANKARA/ TURKEY Tel : +90312 286 91 00 / 3342