Part VI: Creating and Using Retention Indices in NIST Software

The video demonstrates the process to create retention indices (RI's). RI's are used in combination with mass spectrometry to provide nearly unambiguous identification of isomers. This is a ery difficult task to accomplish with EI mass data alone.
NIST offers extensive resources including:
-RI’s for 139K compounds
-RI and MS data 114K compounds
-GC methods and RI citations from 400K literature references
-AMDIS to determine RI’s for compounds in GCMS analyses
The results are sent to NIST search for evaluation.

[@PrasadaRaoKongalaprasadakongal]

Thank you very much

[@jameslittle2264]

your welcom

[@2011carlie]

Do you use Mass Hunter(Qualitative)? If so, how about calibrating the alkane ladder and importing the RI for the unknown into NIST using Mass Hunter vs ADMIS?

[@jameslittle2264]

at one time used MassHunter, but no longer, I know masshunter can send spectra to NIST search, but don't know if RI is one of the fields they send. You would have to try then look in the library editor/edit then either the additional info or experimental data fields or see if they populate the correct RI field when sending to NIST search.

[@LisaChen-n2u]

th-cam.com/video/Gi-SOJmMJVM/w-d-xo.html