From Nanoniele analyses, the score of organic chemistry is the highest in eight chemical research area. GC analyses is frequently used for qualification and quantification of products formed from a variety kind of organic reactions.
The keywords often used with GC is MS (mass spectrometry). GC-MS is one of the powerful method for structural determination of organic compounds.
Reiner, Eric J. seems to be the top researcher who uses the keyword GC in articles.
For detail results of analyses and lists of publications, see Nanoniele.