I am currently carrying out a research project on biogas production and using a GC Agilent 7820A to test for gases.

I am using a cappillary column GasPro 30m * 0.32mm and it is not giving me satisfactory results, and there is also an issue of large retention times accompanied by this column. With your expertise, please assist me with this predicament at hand on the choice of a column suitable for gas characterisation. From the inforrmation i gathered, the use of molecular sieve Poropak Q 2m* 2mm column(or in that close range) would give me better results.

i would also apprciate if you could further advice on this decision i am making.

Your assistance and cooperation will be greatly appreciated.