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Furanic Analysis
Posted: Mon Sep 06, 2010 1:42 pm
by Rouan
Need some help. GC person with a little HPLC experience. I am trying to do Furanic analysis in transformer oil. When I am analysisng the individual standards I get nice symmetric peaks. But the moment I do a mixture all the peaks seems to have a front shoulder. Changing mobile phase conditions did not help. Changing concentration ranges did not help. I am at a lost.
Thanks.
Posted: Mon Sep 06, 2010 1:48 pm
by HW Mueller
Do you inject different volumes when single st. or mixtures are used? Are there other diffs, for instance type of sample solvent?
What is furanic?
Posted: Tue Sep 07, 2010 1:14 pm
by rhaefe
I guess it is the analysis of:
5-hydroxymethyl-2-furaldehyde
furfuryl alcohol
2-furaldehyde
2-acetylfuran
5-methyl-2-furaldehyde
in transformer oil according to ASTM D5837 - 99(2005)
My guess is also injection volume and/or some solvent effect.
rh