The calibration range was linear from 0.75 to 2.5 mg L−1 Fe(III) with coefficients of determination (R2) of 0.9985 and 0.9988, for white and red wines, respectively.
The calibration range was linear from 0.75 to 2.5 mg L−1 Fe(III) with coefficients of determination (R2) of 0.9985 and 0.9988, for white and red wines, respectively.