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Special feature: Tutorial . Glow discharge mass spectrometry: Trace element determinations in solid samples
Author(s) -
King F. L.,
Teng J.,
Steiner R. E.
Publication year - 1995
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/jms.1190300802
Subject(s) - chemistry , mass spectrometry , glow discharge , trace element , analytical chemistry (journal) , feature (linguistics) , trace (psycholinguistics) , ion mobility spectrometry–mass spectrometry , chromatography , selected reaction monitoring , plasma , organic chemistry , tandem mass spectrometry , nuclear physics , linguistics , philosophy , physics
Glow discharge mass spectrometry (GDMS) is a mature, versatile technique for the direct determination of trace elements in a variety of materials. The technique is an extension of the earliest forms of mass spectrometry. Processes inherent to the glow discharge, namely cathodic sputtering coupled with Penning ionization, yield an ion population from which semi‐quantitative results can be directly obtained. Quantification in GDMS is achieved both through standard elemental mass spectrometric procedures and more innovative approaches. The analytical performance of GDMS compares favorably with competing elemental mass spectrometric methods and newer experiments use this ionization method for both molecular and elemental analysis. As with any analytical technique, the future of GDMS lies in improvements with respect to instrumental implementation and extension to new areas of application. If the method is to remain competitive, commercial GDMS systems must incorporate advances in mass spectrometric technology to increase analytical performance while decreasing the size, complexity and cost of the technique. Continued efforts to develop improved quantitation procedures are needed to provide greater accuracy. The method should continue to mature as sustained efforts demonstrate its utility in the solution of new and more varied problems.