Page 1. Journal of Chemical Ecology, Vol. 21, No. 7, 1995 ... Analysis Two aliquots (2 /A) of mandibular extract were evaporated and trimethyl- silyated with bistrimethylsilyltrifluoroacetamide (2 ~1 of neat reagent, Sigma Chemical Co., St. ... J. Chem. Ecol. 16:851-860, Page 13. ...