Flame IonizationChromatography, GasFlame RetardantsOils, VolatileGas Chromatography-Mass SpectrometryAlkanesCalibrationSpectrometry, Mass, Electrospray IonizationBioreactorsHalogenated Diphenyl EthersReproducibility of ResultsPolybrominated BiphenylsHydrocarbons, BrominatedAir IonizationSpectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization