MassHunter Qualitative Analysis lowers the total score when Wiley/NIST20 library has multiple RI values. Thoughts?

Hello DanDurie ,

There are some known issues with current versions of Qual being able to extract the RI information from the NIST libraries. Currently if you need to use RI information from NIST libraries the best option is to use Unknowns Analysis for compound discovery workflows. Note that at this time the only RI value MassHunter retrieves from NIST is the value for Semi-standard non-polar columns. There is currently not an option to use any other RI values.

Hello DanDurie ,

There are some known issues with current versions of Qual being able to extract the RI information from the NIST libraries. Currently if you need to use RI information from NIST libraries the best option is to use Unknowns Analysis for compound discovery workflows. Note that at this time the only RI value MassHunter retrieves from NIST is the value for Semi-standard non-polar columns. There is currently not an option to use any other RI values.

Thanks Howard! I appreciate your reply. Good to have this confirmed. Do we just keep an eye on version update notes to see if this ever gets resolved? Do you know if Wiley/NIST is aware? 

DanDurie ,

Yes, for now just keep an eye out for the updates and for information in the release notes. The issues and limitations for extracting the RI values are within MassHunter, so I don't believe there is anything that Wiley or NIST could do about it.

Thank you!