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- Posts: 6
- Joined: Thu Nov 24, 2016 7:19 pm
We are trying to analyze sulfolane (boiling point 285C) and are getting poor reproducibility. Peak area RSD = around 10%.
We suspect that this is due to inlet discrimination so we've tried many different things (split, splitless, varying purge time etc..) We also tried to raise ion source temperature to 285C) but we are getting the same RSD.
Any suggestion?
We followed the method reported in a paper. The method is as follows:
Solvent: toluene
Injection temperature : 250C (we used 285C)
Oven temperature (80C for 2 min, then 160C at 10C/min, then to 280C at 20C/min
Ion source temperature: 285C (we used both 250C and 285C)
Thank you everyone!