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- Posts: 148
- Joined: Wed Jul 03, 2013 1:51 am
- Location: Michigan, USA
we have just started using RI on our GC/MS systems to better identify unknowns.
I see that NIST MS Search does have an option for using RI to apply a penalty if it is a poor RI match and a good spectral match. This is exactly what we are doing by hand now and I would love for it to be automated to reduce errors made by lab techs.
However, how do I enter the C#/RT pairs into NIST MS Search after running an alkane ladder so that it can compute RIs based on the submitted spectra's retention times? I am at a loss.
Alternatively, how do I get an RI into the submitted spectrum? We usually search either from ChemStation, Xcalibur or MassHunter.
Thanks!