Figure 1. Typical total ion chromatograms from the urinary volatiles extracted from four mouse groups.

One representative chromatogram each from B6 mice fed Diet L, B6 mice fed Diet S, B6-H2^K mice fed Diet L and B6-H2^K mice fed Diet S is shown here. Prominent compound peaks include 2-acetyl-1-pyrroline (11.99 min), beta-farnesene (19.00 min), alpha-farnesene (20.63 min), and the mouse pheromones 2,3-dehydro-exo-brevicomin (13.62 min) and 2-sec-butyl-4,5-dihydrothiazole (14.93 min).