Determination of bisphenol migration in cups used for hot drinks

In this study, the migration amount of bisphenol analogs (Bisphenol A, Bisphenol B, Bisphenol E, Bisphenol F and Bisphenol S) from cups to hot drinks was examined. The analyzes were conducted using different kind of cups called cardboard (printed and unprinted), foam, kraft and thermo cups, which are frequently preferred by consumers. The cups were purchased randomly from the market. In order to determine the migration of bisphenol analogues from cups to hot drinks, distilled pure water (90-95 °C) was poured into the sample cups and left in the cups for 15 minutes. The amount of hot water was placed 5 mm below the top of the cups. The migration amount of bisphenol analogues from the cups to hot water was determined using an LC-MS/MS device. In addition, measurements of the glasses were made and the thickness values of the glasses were determined. The analysis methods applied for all bisphenol analogues used in the study were found to be appropriate in terms of performance criteria such as limit of quatitication (LOQ), limit of detection (LOD) and recovery. When the results are examined, it is seen that the amount of BPA in all samples is above the detectable limit (LOQ). The highest BPA concentration was determined as 15,04 µg/kg in printed paper cups. It was determined that the results obtained were below legal limits. Analysis results show that migration of BPB, BPE, BPF and BPS from the samples is below the detectable limit (LOQ).