BPA(双酚A介绍)英文版

BPA(双酚A介绍)英文版
BPA(双酚A介绍)英文版
BPA
WhatisBPA
WhereisBPAfound
HowdoesBPAgetintothebody
DeterminationofBPA
TopreventexposuretoBPA
sinceyouasked
BPA
BPAWhatisBPAWhereisBPAfou
NEWS
hormone-disrupting
NEWShormone-disrupting
NEWS
U.S.AEUCanadaCNNEWS
●WhatisbisphenolA?
BisphenolA(BPA)isachemicalproducedinlargequantitiesforuprimarilyintheproductionofpolycarbonateplasticsandepoxyresins.
●WhatisbisphenolA? Bispheno
1891
 Thiscompoundissynthesizedbythe condensation of acetone (hencethesuffixAinthename) withtwo equivalents of phenol.
Thereactionis catalyzed byastrongacid.Industrially,alargeexcessofphenolisudtoensurefullcondensation;theproductmixtureofthe cumeneprocess (acetoneandphenol)mayalsobeudasstartingmaterial:
phenol.
Bisphenol A
phenol.
Bisphenol A
1891 phenol.Bisphenol A pheno
●WhereisBPAfound?
foodanddrinkpackaging,e.g.,waterandinfantbottles,compactdiscs,impact-resistantsafetyequipment,andmedicaldevices.
metalproductssuchasfoodcans,bottletops,andwatersupplypipes.
dentalalantsandcomposites
●WhereisBPAfound?foodandd
●HowdoesBPAgetintothebody?
TheprimarysourceofexposuretoBPAformostpeopleisthroughthediet.Whileair,dust,andwaterareotherpossiblesourcesofexposure,BPAinfoodandbeveragesaccountsforthemajorityofdailyhumanexposure.
BisphenolAcanleachintofoodfromtheprotectiveinternalepoxyresincoatingsofcannedfoodsandfromconsumerproductssuchaspolycarbonatetableware,foodstoragecontainers,waterbottles,andbabybottles.
ThedegreetowhichBPAleachesfrompolycarbonatebottlesintoliquidmaydependmoreonthetemperatureoftheliquidorbottle,thantheageofthecontainer.
●HowdoesBPAgetintothebod
●DeterminationofBPAinfoodsimulants
①Reagents
②Apparatus
③Procedure
④Expressionofresults
From
CEN/TS13130-13:2005
●DeterminationofBPAinfood
①Reagents
BPA
n-Hexane
Methanol
Deionizedwater
Extractionsolvent,methanol/water=1:1
MobilephaforHPLCmethanol/water=70:30
StocksolutionofBPAinmethanolatadefinedconcentrationofapproximately0.38mg/ml
①ReagentsBPA