title: Determination of DiazaCon in quail feed and quail serum by ion pair reversed-phase chromatography.
abstract: Liquid chromatographic (LC) methods were developed for quantitating the potential avian contraceptive DiazaCon in quail feed and serum. DiazaCon was extracted from ground quail feed with basic n-butyl chloride. The n-butyl chloride extract was evaporated to dryness. The DiazaCon residues were dissolved in an aqueous methanolic ion pairing solution and quantitated by LC at 206 nm. Avian sera was combined with an equal volume of a pH 4 aqueous solution of ion pairing reagent and filtered to remove interfering proteins. DiazaCon was quantitated by LC. Mean recoveries for 500 and 2000 ppm fortified feed were 89.1 and 91.0%, respectively. The mean recovery for sera fortified at 5 levels ranging from 35 to 2000 ppm was 84.9%. Method limits of detection were approximately 14 and 13 ppm for feed and sera, respectively.
authors: USDA/APHIS/WS/National Wildlife Research Center, Analytical Chemistry Project, Fort Collins, CO 80521, USA.
authors: J J
authors: JJ
authors: Johnston
authors: M J
authors: MJ
authors: Goodall
authors: J C
authors: JC
authors: Hurley
authors: C A
authors: CA
authors: Yoder
authors: L A
authors: LA
authors: Miller
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D000818:Animals; D001373:Azacosterol / Q000032:analysis* / Q000097:blood / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D003270:Contraceptive Agents / Q000032:analysis* / Q000097:blood; D003370:Coturnix / Q000097:blood*; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D011786:Quality Control
chemical_list: D003270:Contraceptive Agents; D007202:Indicators and Reagents; D001373:Azacosterol