Optimization of a GC/MS procedure that uses parallel factor analysis for the determination of bisphenols and their diglycidyl ethers after migration from polycarbonate tableware

► N-way calibrations using PTV-GC/MS and PARAFAC to identify bisphenols unequivocally. ► Direct optimization of some figures of merit by means of a PARAFAC decomposition. ► Shortening the run time does not endanger the specificity of the chromatographic analysis. ► Determination of bisphenols in food simulant in contact with polycarbonate tableware. ► PARAFAC decompositions make determinations possible when interferents coelute.