I have added the column to my results table but there are no values in it. I am using the NIST14.L library.
MassHunter cannot retrieve RI information from NIST14. You would need to have the NIST17 library to use this feature. Currently the only RI value it retrieves is the value for Semi-standard non-polar columns. You would also need to make certain that your method specifies an RT calibration file so that the RI is calculated for components, otherwise the Library RI values will not be retrieved even if they exist. This will work even if you do not specify Use RT Match. Here is an example using the quant RI-PEST-MATRIX demo data.
Retrieving data ...