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Setting up splitless method on Agilent 7890B GC

Question asked by jp_evans on Feb 6, 2017
Latest reply on Sep 16, 2017 by james_jenkins

this will be the first time building a splitless GC method. Any and all help will be appreciated.

question on splitless injection purge time. not seeing ethanol peak in blank. method as follows Fused silica DB5 30m X 0.32mm; 0.25 um. 0.5 uL sample at 250 C, constant flow 1.8 mL/min, oven 60C to 310C, carrier 1.8 ml/min He, FID at 320C, splitless WITH septum purge flow 3 mL/min, 100 mL/min purge flow to slipt vent at 0.5 minutes. Do I have the split injection parameters right?Why am I not getting the sample onto the column?

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