Table 4.

Relative deviations between measured lifetimes ratios and calibration curves for PS optodes.

[O${}_2$] (%)	IrTFPP-CO-Cl		PdTFPP
	${\Delta }_1$(%) ${}^{\mathit{a}}$	${\Delta }_2$(%) ${}^{\mathit{b}}$	${\Delta }_1$(%) ${}^{\mathit{a}}$	${\Delta }_2$(%) ${}^{\mathit{b}}$
0.00	+0.0	+0.0	+0.0	+0.0
1.01	+1.9	+0.6	+6.5	+0.1
5.01	−0.6	+0.1	−0.6	−1.1
9.99	+0.2	+0.1	−0.4	+0.3
16.00	−0.1	−0.1	+0.7	−0.2
18.51	+0.1	−0.2	−0.5	+0.1
21.00	−0.1	+0.1	+0.1	−0.2

^a considering the two-site model; and ^b Lehrer’s model.