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. 2021 Oct 20;8(12):1051–1056. doi: 10.1021/acs.estlett.1c00794

Figure 3.

Figure 3

Time-resolved analysis of 6-PPD and 6-PPDQ in dynamic systems by CP-MIMS. (A) Desorption of 6-PPD (purple, right axis) and 6-PPDQ (black, left axis) from tire dust generated from a 2016 tire in a pH 7 buffered solution (0.5 g of tire dust/L). (B) Desorption of 6-PPDQ from a higher loading of artificial turf pellets (10 g/L), followed by sorption to activated carbon (1 g/L). The Y-axis concentrations are based on dilution of the equilibrated suspension (at t = 35 min in each run) and quantitation by standard additions.