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- Posts: 16
- Joined: Fri Aug 28, 2020 3:24 am
- Location: New Zealand
My company has brought an HS GC FID for internal monitoring of residual ethanol in product after extraction.
I only have basic knowledge so learning as i go.
Ive got a method and have done a calibration curve based on %v/v ethanol dilutions, however the previous reporting they have had via external independant accredited labs have been %w/w.
The sample is too thick to pipette and i have to weigh the sample into the headspace vial.
Are my sample results %v/v, %w/v or %w/w.
Many thanks