1. Nonpolar column-BP1: 30 m · 0.25 mm · 0.25 lm; oven program was initial temperature: 60 C for 1 min, rate
of temperature increase: 10 C/min up to 300 C, final hold: 300 C for 5 min; injector temperature was maintained
at 300 C (splitless); and detector temperature was 320 C.