Figure 4 - available via license: Creative Commons Attribution 4.0 International
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Chromatogram of the reconstituted whole milk powder sample (1:10), packaged in laminated film naturally contaminated by BPA (0.53 ng·mL −1 ). This was confirmed by comparing the signal intensity ratios of the two ion transitions (a) Q -m/z 227 > 212 and (b) q -m/z 227 > 133.
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... the 32 whole fluid milk samples, BPA was detected in two samples submitted to UHT thermal treatment packed in Poly (ethylene terephthalate) PET and Tetra Pak® packaging (below the LQ), while one milk sample submitted to pasteurization heat treatment packaged in polyethylene (PE) and poly (vinylidene chloride) (PVDC) packages contained 0.50 ng·mL −1 of BPA, above the LQ. Figure 4 displays the chromatogram of the whole powdered milk sample naturally contaminated with BPA. ...
