Gas chromatographic determination of the components of the synthetic boll weevil sex pheromone (Grandlure)

Identification of the oxidative decomposition products of the boll weevil pheromone, grandlure, and the determination of the fate of grandlure in soil and water

“…Groups of such beakers were held in constant temperature chambers at 32 and 21°C for 0, 4, 8,12, 24, 32, and 48 h. At the end of each interval, three beakers were removed from each group and extracted three times with diethyl ether. The ether solutions were dried over sodium sulfate, concentrated on a rotary evaporator, dissolved in 1 ml of heptane, and analyzed for grandlure by GLC according to the procedure of Bull et al (1971). An ether solution of grandlure was carried through the evaporation procedure as a control measure to monitor loss in manipulation.…”

“…It was therefore important to determine any possible contamination by grandlure and to determine the longevity and fate of the compounds if they should reach soil and water. This determination was made possible by the development of a gas chromatographic technique developed by Bull et al (1971).…”