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In this study, Ultra High Performance Electrospray Ionization Ion Trap Time of Flight Mass Spectrometry (UHPLC-ESI-IT-TOF MS) method is used to screen the polymer additives in drinking water that is stored in Polyethylene Terephthalate (PET) bottles. After directly analyzing the commercially available water samples, 3 polymer additives (chimassorb 81, irgafos 168 and oleamide) were detected. However, after exposure to sunshine for 8 days, two additional polymer additives (antioxidant 2246 and Butylated Hydroxytoluene (BHT)) were detected besides the former three additives.

Screening of Polymer Additives in Drinking Water Stored in PET Bottles by UHPLC-ESI-IT-TOF MS