Table 2. Numerical Analysis of NIR PL Spectra^a.

catechin concentration [mg/mL]		initial		H2O2, 2 min		H2O2, 20 min		catechin, 2 min		catechin, 10 min		catechin, 20 min		catechin, 30 min
15	(9, 4)	0.67 ± 0.10	100.0	0.14 ± 0.03	20.9	0.09 ± 0.02	13.4	1.68 ± 0.20	250.7	1.64 ± 0.21	244.8	1.62 ± 0.23	241.8	1.56 ± 0.21	232.8
	(8, 6)	0.15 ± 0.02	100.0	0.03 ± 0.01	20.0	0.02 ± 0.01	13.3	0.67 ± 0.09	446.7	0.66 ± 0.09	440.0	0.65 ± 0.10	433.3	0.63 ± 0.09	420.0
	(8, 7)	0.07 ± 0.01	100.0	0.04 ± 0.01	57.1	0.04 ± 0.00	57.1	0.28 ± 0.04	400.0	0.29 ± 0.03	414.3	0.28 ± 0.04	400.0	0.27 ± 0.04	385.7
1.5	(9, 4)	0.74 ± 0.15	100.0	0.14 ± 0.04	18.9	0.08 ± 0.01	10.8	1.96 ± 0.25	264.9	1.77 ± 0.26	239.2	1.59 ± 0.28	214.9	1.44 ± 0.31	194.6
	(8, 6)	0.17 ± 0.04	100.0	0.03 ± 0.01	17.6	0.03 ± 0.01	17.6	0.72 ± 0.11	423.5	0.60 ± 0.11	352.9	0.51 ± 0.12	300.0	0.44 ± 0.12	258.8
	(8, 7)	0.08 ± 0.01	100.0	0.04 ± 0.01	50.0	0.04 ± 0.00	50.0	0.29 ± 0.04	362.5	0.23 ± 0.04	287.5	0.19 ± 0.05	237.5	0.16 ± 0.04	200.0
0.3	(9, 4)	0.59 ± 0.03	100.0	0.11 ± 0.01	18.6	0.07 ± 0.00	11.9	1.42 ± 0.01	240.7	0.59 ± 0.04	100.0	0.22 ± 0.01	37.3	0.14 ± 0.01	23.7
	(8, 6)	0.13 ± 0.01	100.0	0.03 ± 0.00	23.1	0.02 ± 0.01	15.4	0.43 ± 0.01	330.8	0.13 ± 0.01	100.0	0.04 ± 0.00	30.8	0.03 ± 0.01	23.1
	(8, 7)	0.06 ± 0.00	100.0	0.04 ± 0.00	66.7	0.04 ± 0.00	66.7	0.15 ± 0.00	250.0	0.06 ± 0.01	100.0	0.05 ± 0.00	83.3	0.04 ± 0.01	66.7
0.15	(9, 4)	0.76 ± 0.18	100.0	0.14 ± 0.04	18.4	0.08 ± 0.02	10.5	0.49 ± 0.11	64.5	0.11 ± 0.00	14.5	0.09 ± 0.01	11.8	0.09 ± 0.01	11.8
	(8, 6)	0.18 ± 0.05	100.0	0.03 ± 0.01	16.7	0.03 ± 0.00	16.7	0.11 ± 0.03	61.1	0.03 ± 0.01	16.7	0.02±0.01	11.1	0.03 ± 0.00	16.7
	(8, 7)	0.08 ± 0.02	100.0	0.05 ± 0.01	62.5	0.04 ± 0.01	50.0	0.07 ± 0.00	87.5	0.04 ± 0.01	50.0	0.04 ± 0.01	50.0	0.04 ± 0.00	50.0
0.015	(9, 4)	0.69 ± 0.15	100.0	0.15 ± 0.05	21.7	0.08 ± 0.02	11.6	0.11 ± 0.04	15.9	0.08 ± 0.04	11.6	0.08 ± 0.02	11.6	0.07 ± 0.02	10.1
	(8, 6)	0.16 ± 0.03	100.0	0.04 ± 0.01	25.0	0.03 ± 0.01	18.8	0.03 ± 0.01	18.8	0.02 ± 0.01	12.5	0.02 ± 0.01	12.5	0.02 ± 0.01	12.5
	(8, 7)	0.07 ± 0.01	100.0	0.04 ± 0.01	57.1	0.04 ± 0.00	57.1	0.04 ± 0.01	57.1	0.04 ± 0.01	57.1	0.04 ± 0.01	57.1	0.04 ± 0.01	57.1
0.0015	(9, 4)	0.84 ± 0.03	100.0	0.18 ± 0.04	21.4	0.10 ± 0.02	11.9	0.11 ± 0.03	13.1	0.10 ± 0.02	11.9	0.09 ± 0.02	10.7	0.09 ± 0.02	10.7
	(8, 6)	0.19 ± 0.01	100.0	0.05 ± 0.01	26.3	0.03 ± 0.00	15.8	0.03 ± 0.00	15.8	0.03 ± 0.00	15.8	0.02 ± 0.01	10.5	0.02 ± 0.01	10.5
	(8, 7)	0.08 ± 0.01	100.0	0.04 ± 0.01	62.5	0.05 ± 0.00	62.5	0.04 ± 0.00	50.0	0.05 ± 0.01	62.5	0.04 ± 0.00	50.0	0.05 ± 0.00	62.5

^aExcitation wavelength was 730 nm.