Direct detection of vacuum ultraviolet radiation through an optical sampling orifice: determination of nonmetals in gaseous samples by inductively coupled plasma atomic emission spectroscopy

Journal Article · Fri Jan 01 04:00:00 EST 1988 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00152a007· OSTI ID:5572909

LaFreniere, B R; Houk, R S; Wiederin, D R; Fassel, V A

A copper cone with a sampling orifice is attached to the entrance slit chamber or a monochromator and inserted directly into an inductively couples plasma (ICP) to sample vacuum ultraviolet (vacuum UV) radiation emitted by the plasma. A unique interface with low dead volume (<40 ..mu..L) is used for introduction of gaseous samples directly into the axial channel of the ICP. Injection of a gaseous mixture of compounds containing the elements Br, C, Cl, and S results in detection limits of 50, 30, 80 and 20 pg, respectively. These detection limits are by far the best obtained for these elements by ICP atomic emission spectroscopy (AES) and are comparable to those obtained by AES with He plasmas. Precision of the analyte emission intensities is 2% relative standard deviation or better.

• Research Organization: Iowa State Univ., Ames
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 5572909
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 60:1; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical &amp; Spectral Procedures
AIR SAMPLERS
BROMINE
CARBON
CHEMICAL ANALYSIS
CHLORINE
DATA
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION SPECTROSCOPY
EQUIPMENT
EXPERIMENTAL DATA
EXTREME ULTRAVIOLET RADIATION
FAR ULTRAVIOLET RADIATION
FLUIDS
GASES
HALOGENS
INFORMATION
INJECTION
INTAKE
NONMETALS
NUMERICAL DATA
PERFORMANCE
PLASMA
QUANTITATIVE CHEMICAL ANALYSIS
RADIATIONS
SAMPLERS
SAMPLING
SPECTROSCOPY
SULFUR
TRACE AMOUNTS
ULTRAVIOLET RADIATION