Since1940,poly-or perfluorinatedalkylsubstances(PFAS)havebeenlargelyusedin manyapplications,includingpaints,fire foaming,householditems,productpackaging,andfabrics.Becauseof theirextremelyhighpersistency,theyhavebeendefinedas “foreverchemicals”.Althoughthe EU is takingactionto reducetheiruse,theirwidespreadoccurrencein environmentalmatricesand theirharmfuleffectson humanhealthrequirethe use of highlyperforminganalyticalmethodsfor efficientmonitoring.Furthermore,novelPFASare constantlyrevealedby bothEUandNationalenvironmentalagencies.Theobjectiveof thisworkis toinvestigatethe causeof the signaldecreaseduringthe analysisof a standardPFASmixturein water-basedmatrices,by proposingan efficienttechnicalprocedurefor laboratoryspecialists.Theanalyseswerecarriedout on amixtureof 30 PFAS,includingbothregulatedandunknownsubstances(whichare expectedto be introducedin the guidelines),characterizedby differentchemicalfeatures,usingLC-vialsof two differentmaterials,namely,glassand polypropylene,and dissolvedin two solvents,namely,waterand water−methanol.Thetemperatureofanalysisandthe concentrationof PFASwerealsoconsideredthroughLC-MSanalysesat differenttimes,in the 0−15h range.Dependingon the chemicalstructureand lengthof the PFAS,samplingand treatmentproceduresmaybe adoptedto tacklethedecreaseand the releasefromthe containers,reducingthe risk of underestimatingPFASalsoin real watermatrices.
Evaluation of Pure PFAS Decrease in Controlled Settings / Mancini, Marco; Gioia, Valentina; Simonetti, Federica; Frugis, Alessandro; Cinti, Stefano. - In: ACS MEASUREMENT SCIENCE AU. - ISSN 2694-250X. - (2023).
Evaluation of Pure PFAS Decrease in Controlled Settings
Marco Mancini;Federica Simonetti;Stefano Cinti
2023
Abstract
Since1940,poly-or perfluorinatedalkylsubstances(PFAS)havebeenlargelyusedin manyapplications,includingpaints,fire foaming,householditems,productpackaging,andfabrics.Becauseof theirextremelyhighpersistency,theyhavebeendefinedas “foreverchemicals”.Althoughthe EU is takingactionto reducetheiruse,theirwidespreadoccurrencein environmentalmatricesand theirharmfuleffectson humanhealthrequirethe use of highlyperforminganalyticalmethodsfor efficientmonitoring.Furthermore,novelPFASare constantlyrevealedby bothEUandNationalenvironmentalagencies.Theobjectiveof thisworkis toinvestigatethe causeof the signaldecreaseduringthe analysisof a standardPFASmixturein water-basedmatrices,by proposingan efficienttechnicalprocedurefor laboratoryspecialists.Theanalyseswerecarriedout on amixtureof 30 PFAS,includingbothregulatedandunknownsubstances(whichare expectedto be introducedin the guidelines),characterizedby differentchemicalfeatures,usingLC-vialsof two differentmaterials,namely,glassand polypropylene,and dissolvedin two solvents,namely,waterand water−methanol.Thetemperatureofanalysisandthe concentrationof PFASwerealsoconsideredthroughLC-MSanalysesat differenttimes,in the 0−15h range.Dependingon the chemicalstructureand lengthof the PFAS,samplingand treatmentproceduresmaybe adoptedto tacklethedecreaseand the releasefromthe containers,reducingthe risk of underestimatingPFASalsoin real watermatrices.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
