Determination of Bisphenol A Migrating from Epoxy Can Coatings to Infant Formula Liquid Concentrates

Abstract

Migration of bisphenol A (BPA) from epoxy-coated can surfaces to infant formula concentrates is reported. Levels of BPA in the undiluted concentrates surveyed in this study range from 0.1 to 13 parts per billion (ppb) as determined by solid phase extraction/high-pressure liquid chromatography with fluorescence detection and confirmation by gas chromatography with mass selective detection. Fourier transform infrared spectroscopy with 30° specular reflectance/transmittance was used to screen formula cans for epoxy coatings. Keywords: Bisphenol A; epoxy; can coating; migration; infant formula