How to run a viscous oil sample into GCMS?
Yes, you can dilute it with a non polar solvent to lower the viscosity of the oil. You should use a high purity solvent to prevent the appearance of solvent impurity peaks, but also inject a solvent blank to check for any interference. If you’re simple looking for purity by area, then the exact dilution amount isn’t really needed. If you are comparing the product to a standard (conducting a wt/wt assay) then you’ll need to know the exact amount of oil / solvent present in the injection. Either way, the technician can subtract out the solvent peaks form the integration calculations.
