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Determination EG by using GCMS
Posted: Tue Oct 03, 2017 4:09 pm
by roymabroor
Does any one knows a method for " Determination of Ethylene Glycol in aqueous environmental sample using GC-MS"
I have found one method which require deriviatazaion. I want t directly inject into GC-MS
Re: Determination EG by using GCMS
Posted: Tue Oct 03, 2017 9:49 pm
by James_Ball
I have done it before direct inject but it isn't the best thing for the MS injecting water. I was using an old HP5995 which had solid metal quads.
For best separation you will want to use a Wax column, Restek makes a StabilWax-MS column that has very low bleed which should work.
Re: Determination EG by using GCMS
Posted: Wed Oct 04, 2017 4:21 am
by mckrause
Extracting it is nigh on impossible. We do what James does; direct injection onto a polar phase. Works for mono, di and tri ethylene glycols.