“…Real-time digital data acquisition shows great promise of increased accuracy of mass measurement (probably ten-to a thousand-fold over photographic and analogue magnetic tape) and excellent relative peak intensity measurements with a dynamic range in excess of 1 part in 10 4 even for instrument resolutions in excess of 20,000 [41]. Such advantages are extremely desirable from the point of view of obtaining reproducible fragmentation patterns at high resolution for pattern comparison and structural identifications (also location of stable isotopes, e.g., 13 C, D, 180, 15N, by mass measurement), and particularly for the analyses of mixtures of compounds where the fragmentation pattern of the components is indeed additive and could be deconvoluted by matrix algebraic techniques (analogous to petroleum type analyses [11,42] mentioned in the sections on hydrocarbons).…”