title: Positive chemical ionization and tandem mass spectrometric fragmentation for the gas chromatographic analysis of beta-agonists using the ion trap technique.
abstract: A procedure is described for the determination of three characteristic beta-agonists (clenbuterol, terbutalin and salbutamol) based on the formation of the corresponding protonated molecules and related collisional experiments. Quantification was carried out on selected collisional fragments and the reproducibility of the relative abundances of these fragments was estimated. The performance of the method was tested on bovine urine samples spiked at the lowest level of 0.2 ng ml(-1) in each of the chosen compounds.
authors.affiliation: Istituto Zooprofilattico Sperimentale delle Venezie, Via Romea 14A, 35020 Legnaro (PD), Italy. alim.izsv@interbusiness.it
authors.forename: G
authors.initials: G
authors.lastname: Biancotto
authors.forename: R
authors.initials: R
authors.lastname: Angeletti
authors.forename: P
authors.initials: P
authors.lastname: Traldi
authors.forename: F
authors.initials: F
authors.lastname: Guidugli
mesh_terms: D000318:Adrenergic beta-Agonists / Q000032:analysis* / Q000737:chemistry / Q000652:urine; D000420:Albuterol / Q000032:analysis / Q000737:chemistry / Q000652:urine; D000818:Animals; D002417:Cattle; D002849:Chromatography, Gas; D002976:Clenbuterol / Q000032:analysis / Q000737:chemistry / Q000652:urine; D008401:Gas Chromatography-Mass Spectrometry; D013726:Terbutaline / Q000032:analysis / Q000737:chemistry / Q000652:urine
chemical_list: D000318:Adrenergic beta-Agonists; D013726:Terbutaline; D000420:Albuterol; D002976:Clenbuterol