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The differences between sample introduction strategies for inductively coupled plasmas when used as either, photon sources for atomic emission spectrometry or ion sources for mass spectrometry are discussed. The concepts of a coupled interface in mass spectrometry detection is contrasted with the uncoupled interface existing in emission spectrometry detection. Differences in the roles that analyte mass transport and solvent mass transport may play in the two types of systems are compared. The influence of various voltages in the mass spectrometer interface on optimum signal response are compared for a representative selection of elements.

A model for the demonstration of ion deflection by the action of a magnet that is occurring inside of a tube of a mass spectrometer.

Examines the applications of mass spectroscopy to organic chemistry, particularly with respect to quantitative analysis.

IN a recent communication1, P. F. Knewstubb and T. M. Sugden reported some preliminary results on ion identification in flames by mass spectrometry.

This article describes the construction and operation of a mass spectrometer for solid samples.

DURING work on the dissociation of certain classes of organic molecules induced by electron-impact1, the field has been extended to some members of the carbohydrate series2. Using a newer technique3 we have obtained a spectrum of a polysaccharide derivative. A methylated polysaccharide—methylated laminarin—was chosen for this study, since previous experience4 has shown that methylated derivatives of carbohydrates are most suitable for this type of work.