Fig. 4
Release behaviour of methylparaben (MeP) and n-propylparaben (n-PrP) from a gel-filled baby teether into water monitored over a time period of 17 days. Mean concentration values shown with ranges from two independently examined products of the same lot. Sample analyses on day 5 and 6 were not possible. As the MeP mean concentrations on days 14–17 were above the estimated LOD of 7.1 and slightly below the estimated LOQ of 25.3 µg 100 mL−1, they were included in this study