In this work new sorbents are proposed with chemically bonded ketoimine groups to be applied to the solid-phase extraction (SPE) method. A preparation and properties of these sorbents are presented and discussed. Some results are given of an application of these sorbents to the preconcentration and further determination of bisphenol A (BPA) and similar compounds, using SPE and gas chromatography (GC), in the water previously stored in PC-made (polycarbonate) baby bottles. Based on sample solutions containing BPA, some research was taken to optimize conditions for the quantitative determination of this compound using gas chromatography. The proposed techniques enabled detection limits at the level of 0.3 μg L^‑1. A recovery of BPA introduced into the water was also performed, locating recovery result 97.3% ÷ 95.5%, which is significantly better in comparison with commercially available sorbents such as C₁₈. In addition, we proved that BPA is migrating from the PC-made cans to the water these cans contain.