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- Posts: 7
- Joined: Tue Feb 12, 2019 1:17 pm
I'm doing a quantification using, for the same sample, both GC-FID and a GC-MS analysis. Knowing the differences between the two detectors, I can't understand how it can find totally different total concentrations for the same sample, calibration, method and column. In particular, the concentrations at FID are clearly higher. I don't really undestand how I can measure a total concentration measured for FID of 70 ppm and for MS in under the LOD.
Thank you for your attention