Quantification of sex pheromone from Anocentor nitens by gas chromatography-mass spectrometry-selected ion monitoring

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Two highly sensitive and selective methods based on gas chromatography coupled to mass spectrometry (GC-MS) in the selected ion monitoring (SIM) mode have been developed for the quantification of 2,6-dichlorophenol (2,6-DCP), a sex pheromone of the tick females of Anocentor nitens. Standard addition method and calibration curve techniques using 5-bromine-4-hydroxy-3- methoxybenzaldehyde (5-BrV) as internal standard (IS) afforded detection limit of 0.1ngml-1. The calibration curve was linear over the concentration range from 0.5 to 500ngml-1 for 2,6-DCP. Results show that the concentration range of sex pheromone in the extracts samples was 1.08-10.35ngml-1. The methods developed provided reliable procedures to determine amounts of 2,6-DCP present in ticks. © 2003 Elsevier B.V. All rights reserved.



2,6-Dichlorophenol, Anocentor nitens, GC-MS-SIM, Calibration, Gas chromatography, Mass spectrometry, Detection limits, Phenols, 2,6 dichlorophenol, 5 bromine 4 hydroxy 3 methoxybenzaldehyde, benzaldehyde derivative, sex pheromone, unclassified drug, calibration, controlled study, extraction, female, gas chromatography, hormone determination, ion monitoring, mass spectrometry, nonhuman, quantitative analysis, sex difference, standard, technique, tick

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Talanta, v. 62, n. 3, p. 637-641, 2004.