Table 4.

Results obtained from the regression analysis by the weighted least squares method for PAR, IBU, SIMA, OLA and SIM (n=6).

Analyte	Mean R2	Mean slope ± S.E.	Mean intercept ± S.E.
PAR	0.99994	0.50 ± 0.070	-0.004 ± 0.07
IBU	0.99991	0.34 ± 0.001	-0.060 ± 0.07
SIMA	0.99997	0.44 ± 0.001	0.010 ± 0.05
OLA	0.99994	0.80 ± 0.003	0.230 ± 0.12
SIM	0.99940	0.50 ± 0.005	0.367 ± 0.24