title: [Determination of Amantadine in Poultry Tissues and Egg by LC-MS/MS].
abstract: An accurate and selective analytical method for amantadine, which is used as antiviral drug to treat influenza A virus infection, was developed using LC-MS/MS. Residual amantadine was extracted from 4 kinds of food sample (poultry muscle, liver, gizzard and egg) with acetonitrile-pH 3.0 McIlvaine buffer (7 : 3), then cleaned up with an Oasis® MCX mini-cartridge. An external standard calibration curve was used for quantification, after sample purification by the combination of a reverse-phase strong cation exchange mixed mode cartridge for cleanup and a HILIC column for HPLC. The method was validated by performing recovery tests in accordance with Japanese guidelines for the validation of analytical methods for residual agricultural chemicals in food. Recovery ranged from 79.3% to 91.7%, RSDs of repeatability were under 3.3%, and RSDs of within-laboratory reproducibility were under 8.4%. This new method was applied to samples of poultry and egg purehased in Tokyo, but residual amantadine was not detected at all.
authors.affiliation: Tokyo Metropolitan Institute of Public Health.
authors.forename: Yumi
authors.initials: Y
authors.lastname: Tsuruoka
authors.forename: Takayuki
authors.initials: T
authors.lastname: Nakajima
authors.forename: Tsuneo
authors.initials: T
authors.lastname: Hashimoto
authors.forename: Maki
authors.initials: M
authors.lastname: Kanda
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Hayashi
authors.forename: Youko
authors.initials: Y
authors.lastname: Matsushima
authors.forename: Souichi
authors.initials: S
authors.lastname: Yoshikawa
authors.forename: Chieko
authors.initials: C
authors.lastname: Nagano
authors.forename: Yuki
authors.initials: Y
authors.lastname: Okutomi
authors.forename: Ichiro
authors.initials: I
authors.lastname: Takano
mesh_terms: D000097:Acetonitriles; D000547:Amantadine / Q000032:analysis* / Q000302:isolation & purification; D000818:Animals; D000998:Antiviral Agents / Q000032:analysis* / Q000302:isolation & purification; D002645:Chickens; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004531:Eggs / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis*; D008460:Meat / Q000032:analysis*; D054735:Phosphorothioate Oligonucleotides; D015203:Reproducibility of Results; D053719:Tandem Mass Spectrometry / Q000379:methods*
chemical_list: D000097:Acetonitriles; D000998:Antiviral Agents; D054735:Phosphorothioate Oligonucleotides; D000547:Amantadine; C089753:alicaforsen; C032159:acetonitrile