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Title: Spark discharge trace element detection system

Abstract

A spark discharge trace element detection system is provided which includes a spark chamber including a pair of electrodes for receiving a sample of gas to be analyzed at no greater than atmospheric pressure. A voltage is provided across the electrodes for generating a spark in the sample. The intensity of the emitted radiation in at least one primary selected narrow band of the radiation is detected. Each primary band corresponds to an element to be detected in the gas. The intensity of the emission in each detected primary band is integrated during the afterglow time interval of the spark emission and a signal representative of the integrated intensity of the emission in each selected primary bond is utilized to determine the concentration of the corresponding element in the gas. 12 figs.

Inventors:
; ;
Issue Date:
Research Org.:
Spectral Sciences Inc
OSTI Identifier:
7019987
Patent Number(s):
4766318 A
Application Number:
PPN: US 6-866915
Assignee:
Spectral Sciences, Inc., Burlington, MA (United States) CHO; EDB-94-117202
DOE Contract Number:  
AC02-83ER80085
Resource Type:
Patent
Resource Relation:
Patent File Date: 27 May 1986
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; GASES; MULTI-ELEMENT ANALYSIS; ELECTRIC SPARKS; EMISSION; GAS ANALYSIS; QUANTITATIVE CHEMICAL ANALYSIS; CHEMICAL ANALYSIS; ELECTRIC DISCHARGES; FLUIDS; 400102* - Chemical & Spectral Procedures

Citation Formats

Adler-Golden, S., Bernstein, L.S., and Bien, F. Spark discharge trace element detection system. United States: N. p., 1988. Web.
Adler-Golden, S., Bernstein, L.S., & Bien, F. Spark discharge trace element detection system. United States.
Adler-Golden, S., Bernstein, L.S., and Bien, F. Tue . "Spark discharge trace element detection system". United States.
@article{osti_7019987,
title = {Spark discharge trace element detection system},
author = {Adler-Golden, S. and Bernstein, L.S. and Bien, F.},
abstractNote = {A spark discharge trace element detection system is provided which includes a spark chamber including a pair of electrodes for receiving a sample of gas to be analyzed at no greater than atmospheric pressure. A voltage is provided across the electrodes for generating a spark in the sample. The intensity of the emitted radiation in at least one primary selected narrow band of the radiation is detected. Each primary band corresponds to an element to be detected in the gas. The intensity of the emission in each detected primary band is integrated during the afterglow time interval of the spark emission and a signal representative of the integrated intensity of the emission in each selected primary bond is utilized to determine the concentration of the corresponding element in the gas. 12 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {8}
}