| Abstrakt: |
A method of analysis using high-pressure liquid chromatography (HPLC) with an ultraviolet detector was developed for determining release rates of the antiaggregation pheromone ofDendroctonus pseudotsugae Hopkins, 3-methyl-2-cyclohexen-1-one (MCH), in controlled-release formulations. The pheromone released by the formulations was swept from the test apparatus, trapped on Porapak-QS packing, and eluted with solvent. Aliquots of the eluate were analyzed by liquid chromatography. Release rates of 5–400 µg MCH/hr per g formulation were determined from 5-g samples of the controlled-release formulations. |
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