Table 1. Actual and Estimated [PPi] Obtained from the PCA Calibration Method.

loading fraction (1 – C1)	[PPi]real (μM)	[PPi]est (μM)	% error in [PPi]
0.33253	1600	1527	–4.5
0.34954	1500	1422	–5.2
0.36016	1400	1359	–2.9
0.39666	1250	1162	–7.04
0.41081	1200	1092	–9
0.45751	950	886	–6.7
0.47095	900	833	–7.4
0.47552	850	816	–4
0.4953	825	744	–9.8
0.50296	780	718	–7.9
0.54331	675	590	–12.59
0.54818	650	576	–11.38
0.60063	480	439	–8.54
0.64191	360	348	–3.33
0.67647	320	282	–11.8
0.76334	150	149	–0.66
0.82083	80	82	2.5