After acquisition of the data, the applied processing steps should not be overlooked. Typically, NMR data are processed using an exponential window function, increasing the spectral SINO ratio even further. To increase the spectral resolution, zerofilling the FID signal should be applied at least once. After Fourier transform of the multiplied and zerofilled FID, the phase of the signals and the baseline of the spectrum should be corrected to minimize integration errors. Finally, the quantifiable signals can be integrated. This final step is just as important as any other. For pure Lorentzian peak shapes, an integration error of <1% can be obtained by drawing an integral symmetrically around the centre of the peak, with a total width of 50 times the full width at half maximum (FWHM) of the peak. This is not always feasible. Note that if satellite peaks are present (e.g. when integrating signals of protons attached to a carbon-13 or nitrogen-15), these integration areas should also be taken into account.