Table 7.

Parameter values under different initial concentrations

Drawing	300 mg·L−1	400 mg·L−1	500 mg·L−1	600 mg·L−1	700 mg·L−1
y0	21.07 ± 10.12	32.46 ± 5.82	43.15 ± 6.48	51.31 ± 4.18	61.05 ± 8.31
A	40.34 ± 5.53	73.57 ± 13.01	123.35 ± 23.30	146.80 ± 24.23	185.88 ± 41.55
t	0.55 ± 0.40	0.35 ± 0.14	0.30 ± 0.10	0.26 ± 0.06	0.28 ± 0.09
R2 (coefficient of determination)	0.98	0.99	0.99	1.00	0.99
Adjusted R2	0.95	0.97	0.98	0.99	0.98