Tab. 1.

Linear regression data for calibration curves (n=6)

Parameters	ACF	PCM	TRM
Linearity range	40–160 μg mL−1	130–520 μg mL−1	15–60 μg mL−1
Slope ± Standard error	43113 ± 298.83	16544 ± 269.35	7579 ± 26.72
Intercept ± Standard error	−85483 ± 32185	2993979 ± 94284	−2200 ± 1079
Confidence limit of slopea	42345 to 43881	15851 to 17236	7510 to 7648
r2	0.9998	0.9987	0.9999
Correlation coefficient (r)	0.9999	0.9993	1.0000
Sy.xb	9025	7456	720

^a95% Confidence Intervals;

^bStandard deviation of residuals from line.