Haloaceticacids(HAAs)areformedduringthechlorinationofdrinkingwater,whichareharmfultopeople′shealthduetotheircarcinogenicandmutageniceffects.Inthepresentstudy,adetectionmethodcombiningmethyltert-butylether(MtBE)extractionwithacidcatalysisandgaschromatographycoupledwithanelectroncapturedetector(GC/ECD)wasdevelopedfordeterminingHAAs.Thedetectionlimitofthismethod(MDL)andrelativestandarddeviation(RSD)werebelow0.37μg/Land6.2%,respectively.Thelaboratorychlorinationexperimentswereconductedwiththepurposeofinvestigatingtheinfluencesofreactiontime,temperature,UV254,bromideandammonia-nitrogenontheformationofHAAs.TheresultsshowthattheformationamountofHAAsincreaseswithincreasingreactiontimeandtemperature,respectively;andthereexistsalinearrelationshipbetweentheformationofHAAsandUV254.TheformationamountofHAAsdecreasesfirstandthenincreasesasthebromideionconcentrationincreases,andaddingNH+4isapossiblewaytocontroltheformationofHAAs.
