The potential of fast atom bombardment for quantitative minor component analysis: Determination of α‐tomatine in tomato fruit

Abstract
Fast atom bombardment mass spectrometry (FAB‐MS) has been used for the quantitative determination of tomatine in tomato fruit. Levels of 7 ppm (green fruit) and ≤0.8 ppm (detection limit, red fruit) were found, in agreement with figures recently reported using a radiolabelling approach. The potential of FAB‐MS for the quantitative analysis of important food constituents is discussed.