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1.17.1 Calculation of the Relative Response Factors
ОглавлениеA standard solution containing the three compounds 1, 2, and 3 at known concentrations C1, C2, and C3 is prepared. The chromatogram corresponding to the injection of a volume V of this standard solution shows three peaks of area A1, A2, and A3. These areas will be related to the masses m1, m2, and m3 of the compounds in volume V, by three expressions of the Eq. (1.42) type.
Figure 1.14 Analysis by internal normalization method.
One of the compounds, 3 for example, is chosen as the substance for internal normalization. This compound 3 will serve to calculate the relative response factors K1/3 and K2/3 for compounds 1 and 2 with respect to 3 . As previously deduced:
Given that mi = Ci.V, then the following equations for K1/3 and K2/3 are obtained:
