Design and characterization of a new rf-glow discharge mass spectrometer
- Oak Ridge National Laboratory, TN (United States); and others
Radio-frequency (rf) powered glow discharges are presently receiving much interest because of their capability to atomize, and subsequently to excite and ionize, nonconducting materials directly. Glow discharge mass spectrometry (GDMS) has found its greatest application in the analysis of high purity metals and alloys; however, these matrices are quite simple. The union of rf glow discharges with mass analyzers has been quite promising; however, the complexity of the mass spectral features increases with complexity of the matrix, as in the case of nonconducting materials (eg., oxides, glasses, soils). Additionally, adducts of the matrix elements with discharge gas and residual gases further complicate the spectra. The authors have designed a new rf-GDMS system which employs a quadrupole ion trap mass analyzer. In addition to the portability of the ion trap, it provides several benefits over traditional linear quadrupole and sector-based mass analyzers, resulting in simpler spectra for mass analysis. Several of the benefits of GDMS, employing a ion trap mass analyzer will be discussed and demonstrated, with an emphasis on its analytical utility.
- OSTI ID:
- 191720
- Report Number(s):
- CONF-941098-; TRN: 95:006733-0076
- Resource Relation:
- Conference: FACSS XXI: 21st annual conference of the Federation of Analytical Chemistry and Spectroscopy Societies (FACSS), St. Louis, MO (United States), 2-7 Oct 1994; Other Information: PBD: 1994; Related Information: Is Part Of 21st annual conference of the Federation of Analytical Chemistry and Spectroscopy Societies; PB: 257 p.
- Country of Publication:
- United States
- Language:
- English
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