FormatesFormate DehydrogenasesMethanolFormic Acid EstersTandem Mass SpectrometryChromatography, LiquidSpectrometry, Mass, Electrospray IonizationLimit of DetectionDecalcification TechniqueChromatography, High Pressure LiquidEthylene ChlorohydrinAcetic AcidFermentationOxalic AcidChloral HydrateCarboxylic AcidsAldehyde OxidoreductasesSolid Phase ExtractionCalibrationPhytanic AcidReproducibility of ResultsMass SpectrometryReference StandardsFormaldehydeCarbon DioxideAcetatesHydrogenDrug StabilityHydrogen-Ion ConcentrationTrifluoroacetic AcidHydrogenaseXyloseEuryarchaeotaDrug ResiduesClostridium acetobutylicumAcetonitrilesSolventsTungstenMolybdenumOxidation-ReductionCyanogen BromideAnaerobiosisAcetoneChromatography, GasCulture MediaMethaneChemistryMolecular Sequence DataChemical PhenomenaAmino Acid SequenceEscherichia coliSensitivity and SpecificityEthanolBenzyl ViologenMolecular StructureBeetlesAmino AcidsMolecular WeightKineticsGas Chromatography-Mass SpectrometryDrugs, Chinese HerbalChromatography, Ion ExchangeMagnetic Resonance SpectroscopyMethylobacterium extorquensDeltaproteobacteriaAnimal FeedLeast-Squares AnalysisGram-Negative Anaerobic BacteriaKidney Tubules, ProximalOxalatesGlucoseElectrophoresis, Polyacrylamide GelPeptide FragmentsNitratesChromatography, Thin LayerMethylphenazonium MethosulfateMethanospirillumChromatography, GelCattleFumaratesFormate-Tetrahydrofolate LigaseMethanomicrobiaceaeElectron TransportTungsten CompoundsOxidoreductasesNitrate ReductasesWolinellaMethanobrevibacterSwineClostridiumSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationAlzheimer DiseaseAmyloid beta-PeptidesTrypsinSelenocysteineLinear ModelsBrainNADPlacentaMethanococcus