The method was tested by determination of calcium bioavailability of powder milk and calcium carbonate tablets.
The accuracy of the method was evaluated by determination of cadmium in various real samples.
Validation of this method was carried out by determination of recoveries, the standard deviations (SD), the repeatability (RSDr) and reproducibility (RSDR), the minimum Limit of Detection (LOD) and Limit of Quantification (LO Q.
CAT activity was measured according to the method of Aebi (1984) by determination the disappearance of H2O2 by measuring the decrease in an absorbance at 240 nm of a reaction mixture containing 25 mM phosphate buffer (pH 7.8), 10 mM H2O2 and enzyme.
The validation of the method was carried out by determination and assessment of the following performance parameters: linearity and range, accuracy, precision, LOD, LOQ, and matrix effects.
Validation of the HPLC method was carried out by determination of linearity, precision, limits of quantification (LOQ) and detection (LOD).
The lignin composition in corn stover pretreated with G. trabeum was determined by the method that determination of structural carbohydrates and lignin in biomass published by the National Renewable Energy Laboratory [ 60].
The values of method limit of quantification (LOQ) were 0.01 0.02 mg kg−1 for all studied pyrethroid and the values of recovery were between 94.3 and 115.2%, with good precision (RS D< 18.4%), demonstrating that the performance of the total method consisting of a modified Luke extraction method and determination by GC × GC-μECD are satisfactory.
To avoid the impact of these invalid short connections, Eq. (12) gives the improved connection determination method by considering the encounter duration.
The phenol compounds contents in raw oil and light phase are determined by the standardization method of "Determination of the phenol content of washing oil".
