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New to GC FID

Question asked by revathy on Jan 17, 2019
Latest reply on Feb 7, 2019 by hennindm



I am new to GC Method development phase. We are having GC 7820 A with FID detector. Currently I am developing a method for industrial solvents. When I run a blank (THF), I got a very unusual spikes in the chromatogram as seen below. I have changed the inlet, septum and checked the gold seal which looks good and trimmed the column in the inlet end. Any suggestion would be of great help