title: Quality assurance of commercial beeswax. Part I. Gas chromatography-electron impact ionization mass spectrometry of hydrocarbons and monoesters.
abstract: The use of low-temperature capillary gas chromatography coupled to electron impact mass spectrometry for the characterization of crude beeswaxes yielded by Apis mellifera is described. The system allows the identification of a great number of compounds, some of them not reported till now in beeswax, such as a family of ethyl esters, tetracosyl oleate, and several saturated and unsaturated hydrocarbons. The information acquired makes possible the differentiation between pure beeswax and some foundation beeswax samples where mixture of pure beeswax with another substances is suspected.
authors.affiliation: Department of Analytical Chemistry, Faculty of Sciences, University of Valladolid, Prado de la Magdalena s/n, 47005 Valladolid, Spain. jjimenez@qa.uva.es
authors.forename: J J
authors.initials: JJ
authors.lastname: Jiménez
authors.forename: J L
authors.initials: JL
authors.lastname: Bernal
authors.forename: S
authors.initials: S
authors.lastname: Aumente
authors.forename: Ma J
authors.initials: MJ
authors.lastname: del Nozal
authors.forename: Ma T
authors.initials: MT
authors.lastname: Martín
authors.forename: J
authors.initials: J
authors.lastname: Bernal
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D011786:Quality Control; D014885:Waxes / Q000737:chemistry*
chemical_list: D014885:Waxes; C038228:beeswax