自动SPME-GCMS法分析生活饮用水中臭味物质土臭素和2-甲基异莰醇-豆柴文库

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自动SPME-GCMS法分析生活饮用水中臭味物质土臭素和2-甲基异莰醇
Title:Analysisof2-MethylisoborneolandGeosmininDrinkingWaterUsingAutomatedSPME-GCMS
Abstract:
Thepresenceofearthyandmustyodorsindrinkingwaterisacommonproblemworldwideandcanleadtoconsumerdissatisfaction.Themaincompoundsresponsiblefortheseodorsaregeosminand2-Methylisoborneol(MIB).ThisstudyaimedtodevelopanautomatedSolidPhaseMicroextraction-GasChromatography-MassSpectrometry(SPME-GCMS)methodfortheanalysisofgeosminandMIBindrinkingwater.TheanalysisprocedureinvolvedtheoptimizationofSPMEparameters,validationofthemethod,andanalysisofrealwatersamples.ResultsshowedthatthedevelopedSPME-GCMSmethodissensitive,accurate,andreliableforthedeterminationofgeosminandMIBindrinkingwater.
1.Introduction:
Thepresenceofoff-flavorsindrinkingwater,particularlyearthyandmustyodors,isasignificantconcernforwatertreatmentplantsandconsumers.TheseodorsareprimarilycausedbythepresenceofgeosminandMIB,whicharevolatileorganiccompoundsproducedbycertaintypesofalgaeandbacteria.GeosminandMIBcanimpartastrongearthyodorinwaterevenatextremelylowconcentrations,renderingthewaterunpleasantandundesirablefordrinking.Therefore,itisessentialtodevelopaccurateandsensitiveanalyticalmethodstodetectandquantifythesecompoundsindrinkingwater.
2.ExperimentalApproach:
2.1SampleCollection:
Watersamplesfromdifferentsources,includingtapwaterandnaturalwaterbodies,werecollectedandstoredinglasscontainerspriortoanalysis.
2.2SPME-GCMSMethodDevelopment:
TheSPME-GCMSmethodwasoptimizedtoachievemaximumextractionefficiencyandsensitivityforgeosminandMIBinwatersamples.DifferentSPMEfibercoatings,extractiontemperatures,andextractiontimeswereevaluatedtodeterminetheoptimumconditions.
2.3MethodValidation:
ThedevelopedSPME-GCMSmethodwasvalidatedusingspikedwatersamplesatvariousconcentrationsofgeosminandMIB.Parameterssuchaslinearity,sensitivity,precision,accuracy,andrecoverywereevaluatedtoensurethereliabilityofthemethod.
2.4AnalysisofRealWaterSamples:
TheoptimizedSPME-GCMSmethodwasappliedtoanalyzerealwatersamplestodet