Table 1. Fit Parameters for Photolysis to eq 4a^a.

	C1	C2R0	R2	change in C1	change in C2
retinol only: high	0.156 ± 0.009	–0.32 ± 0.01	0.9936	N/A	N/A
retinol only: low	0.149 ± 0.005	–0.58 ± 0.04	0.9975	N/A	N/A
retinol + StoppOx: high	0.149 ± 0.004	–0.74 ± 0.02	0.9981	NS	P < 0.0005
retinol + StoppOx: low	0.098 ± 0.008	–0.56 ± 0.08	0.9923	P < 0.0005	NS
retinol +BHT: high	0.26 ± 0.01	–0.74 ± 0.06	0.9941	P < 0.0005	P < 0.0005
retinol +BHT: low	0.211 ± 0.007	–0.83 ± 0.02	0.9971	P < 0.0005	P < 0.0005

^aThe errors indicate uncertainty in the fit parameters. The last two columns indicate the significance of the change in each parameter relative to retinol-only, as measured by the extra sum-of-squares F test. N/A = not applicable; NS = not significant.