Data of product ion spectra of [2DHB-2H2O+H]+, [BPA+DHB-2H2O+H]+, [BPA+DHB-2H2O+K]+ and [BPA+DHB-2H2O+Na]+ in the MS/MS measurement of 250 pmol-BPA standard spot
Text data of Supplementary figure 1. product ion spectra of (A) [2DHB-2H2O+H]+, (B) [BPA+DHB-2H2O+H]+, (C) [BPA+DHB-2H2O+K]+ and (D) [BPA+DHB-2H2O+Na]+ in the MS/MS measurement of 250 pmol-BPA standard spot. The neutral loss corresponding to the formula of (DHB-H2O) or (BPA-H2O) was detected in each product ion spectra.