Figures & data
FIGURE 1 Chromatogram of the calibration solution.
Table 1 Composition of the calibration solutions
Table 2 Relative retention times
Table 3 Linear regression parameters calculated on the basis of the ratio of the area under the peak corresponding to a given acylglycerol to that of the peak corresponding to the internal standard (standard deviation given in parentheses)
FIGURE 2 The ratio of the area of the peak corresponding to monoacylglycerols to that of the peak corresponding to the internal standard versus the monoacylglycerols concentration.
FIGURE 3 Chromatograms of the diesel oil analyzed B-5 and B-50.
FIGURE 4 Chromatogram of diesel oil B-50 containing FAME obtained by transesterification of cooking oil.
Table 4 Concentrations of particular acylglycerols in a sample of diesel oil admixtured with FAME (B50): Estimation of the method repeatability
Table 5 Indirect precision calculated for particular acylglycerols in the diesel oil
Table 7 Comparison of the results of measurements with the reference values taking into account the uncertainties
Table 6 Values of extended uncertainty (U) and the coefficient of extension (k)