Spectrophotometry, AtomicSpectrophotometryAbsorptionIntestinal AbsorptionLightSpectrophotometry, UltravioletSpectrophotometry, InfraredZincSpectrum AnalysisKineticsTabletsIronSkin AbsorptionCopperChromatography, High Pressure LiquidOxidation-ReductionBiological AvailabilityHydrogen-Ion ConcentrationGraphiteColorMicrochemistrySpectrometry, FluorescenceAluminumLeadOxyhemoglobinsCalibrationMethodsWaterColoring AgentsX-Ray Absorption SpectroscopyJejunumTrace ElementsTime FactorsIndicators and ReagentsIndocyanine GreenBilirubinColorimetryTemperatureMagnesiumChromatography, Thin LayerChromiumMethemoglobinDithioniteCalciumHemoglobinsFerrous CompoundsMagnesium CompoundsPotassium CompoundsMercuryMetals, HeavyFlow Injection AnalysisFerric CompoundsSolutionsOxygenDensitometryBlood Volume DeterminationIntestine, SmallChemistryPotassium IodideChemical PhenomenaHydrochloric AcidAutoanalysisManganeseReproducibility of ResultsCadmiumCarboxyhemoglobinScattering, RadiationMyosin Light ChainsDrug StabilityCattleAdministration, OralZinc RadioisotopesRabbitsSolubilityParticle SizePhytic AcidElectron Spin Resonance SpectroscopyBoratesErythrocytesSpinal PuncturePharmaceutical PreparationsHairRats, Sprague-DawleyLiverAzo CompoundsMolecular StructureCarotenoidsBaccharisNickelNephelometry and TurbidimetryModels, ChemicalFlavinsHemeIron RadioisotopesCerebrospinal Fluid ProteinsZinc IsotopesCarbon MonoxideIntestinesSodiumSpectroscopy, Fourier Transform Infrared