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splitless injection peak area reproducibility
Posted: Mon Feb 19, 2018 2:17 pm
by carolinecolorado
I am working on EPA 525.2 water analysis method using splitless mode ( Agilent 7890A GC). The problem I have is the reproducibility of the internal standards and surrogates. The peak shapes are all good but the peak areas could vary a lot. Can somebody working on the same method give me some guide? THanks
Re: splitless injection peak area reproducibility
Posted: Tue Feb 20, 2018 7:14 pm
by Bigbear
Details? The more you don't tell us, the less we can help.
Re: splitless injection peak area reproducibility
Posted: Wed Feb 21, 2018 5:09 pm
by James_Ball
Can you give column and inlet conditions?
Do you see the variation when injecting the same vial multiple times or when injecting from different vials?