Flame IonizationChromatography, GasFlame RetardantsOils, VolatileGas Chromatography-Mass SpectrometryAlkanesCalibrationSpectrometry, Mass, Electrospray IonizationReproducibility of ResultsHalogenated Diphenyl EthersPolybrominated BiphenylsHydrocarbons, BrominatedAir IonizationSpectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization