Figure 2From: Stronger findings from mass spectral data through multi-peak modelingNatural isotopic distribution of the mass of a typical lipid, the ceramide Cer(d18:1/17:0). The presence of atomic isotopes leads to the appearance of multiple mass spectral peaks from the compound. Some isotopes are very similar by their mass but still differentiable by the mass spectrometer. The isotope peaks have distinct mass-to-charge ratios at the same retention time (Figure 1).Back to article page