Sampling and excitation of refractory solids with a theta pinch designed as an atomic emission source

Journal Article · Thu Jan 15 04:00:00 EST 1987 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00129a018· OSTI ID:6922491

White, J S; Scheeline, A

Work with a theta pinch designed as an atomic emission source for solids analysis is reported. Argon at 3.5 torr provided the most intense analyte emission compared to several other gases. A study of the effects of sample positioning provides further understanding of the plasma motion and plasma/sample interactions. Application of the new sample positioning knowledge has resulted in significant increases in analyte emission, as is demonstrated by use of samples of tungsten powder, boron nitride, and aluminum oxide ceramics.

• Research Organization: Univ. of Illinois, Urbana
• DOE Contract Number: FG02-84ER13218
• OSTI ID: 6922491
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 59:2; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
ARGON
BORON COMPOUNDS
BORON NITRIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
DATA
ELEMENTS
EMISSION SPECTROSCOPY
EXPERIMENTAL DATA
FLUIDS
GASES
HELIUM
HYDROGEN
INFORMATION
METALS
NITRIDES
NITROGEN COMPOUNDS
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PERFORMANCE
PINCH EFFECT
PLASMA PRODUCTION
PNICTIDES
QUALITATIVE CHEMICAL ANALYSIS
RARE GASES
SPECTROSCOPY
THETA PINCH
TRANSITION ELEMENTS
TUNGSTEN