The mass spectrometer is uniquely applicable to the solution of a wide range of problems in chemical research and production Plant stream analyzers now available enhance its advantages for rapid accurate quantittive analyses of mixtures of a large number of components Unique information concerning identity or molecular structure is obtainable from a mass spectrum, complementing well present instrumental methods such as infrared spectrophotometry Illustrations are given to show the broad potentialities of the technique. A method of classification and mechanisms of formation are discussed for the anomalous molecular rearrangements found in many spectra.
Fred W. McLafferty, "Mass Spectrometry in Chemical Research and Production," Appl. Spectrosc. 11, 148-156 (1957)