AAR Lab

Agilent 6890 Gas Chromatograph

The Amino Acid Racemization (AAR) geochronology lab at the Paleontological Research Institution (PRI) was created in 2015 after all the necessary equipment for the lab was acquired from the University of Delaware late in 2014. This transfer occurred because of the retirement from Delaware’s Geological Sciences Department of Professor (now PRI research associate) John Wehmiller, one of the world’s leading experts in the field of AAR dating and its applications to Quaternary geochronology.

The AAR Lab at PRI consists of all the necessary wet chemical and sample preparatory equipment for AAR dating analysis, using an Agilent 6890 Gas Chromatograph (GC) equipped with Chemstation software for operation of the autosampler system and data storage. The AAR Lab at PRI is one of approximately six worldwide (two others in the US) and the only one employing GC methods.