Spark discharge trace element detection system

Adler-Golden, Steven; Bernstein, Lawrence S; Bien, Fritz

Title: Spark discharge trace element detection system

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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.

Inventors:

Adler-Golden, Steven ^[1]; Bernstein, Lawrence S ^[2]; Bien, Fritz ^[3]

Newtonville, MA
Bedford, MA
Concord, MA

Issue Date:: 1988-01-01

Research Org.:: Spectral Sciences Inc

OSTI Identifier:: 866694

Patent Number(s):: 4766318

Assignee:: Spectral Sciences, Inc. (Burlington, MA)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
G01J2003/2869 - {Background correcting}
G01J3/36 - Investigating two or more bands of a spectrum by separate detectors

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N21/67 - using electric arcs or discharges
G01N21/69 - specially adapted for fluids {, e.g. molten metal}

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DOE Contract Number:: AC02-83ER80085

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: spark; discharge; trace; element; detection; provided; chamber; including; pair; electrodes; receiving; sample; gas; analyzed; atmospheric; pressure; voltage; generating; intensity; emitted; radiation; primary; selected; narrow; band; detected; corresponds; emission; integrated; afterglow; time; interval; signal; representative; bond; utilized; determine; concentration; corresponding; spark discharge; signal representative; trace element; atmospheric pressure; time interval; narrow band; chamber including; element detection; discharge trace; corresponding element; /250/356/

Citation Formats


                    Adler-Golden, Steven, Bernstein, Lawrence S, and Bien, Fritz. Spark discharge trace element detection system.  United States: N. p., 1988. 
        Web.

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                    Adler-Golden, Steven, Bernstein, Lawrence S, & Bien, Fritz. Spark discharge trace element detection system.  United States.

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                    Adler-Golden, Steven, Bernstein, Lawrence S, and Bien, Fritz. Fri .  
        "Spark discharge trace element detection system".  United States.  https://www.osti.gov/servlets/purl/866694.

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@article{osti_866694,

  title        = {Spark discharge trace element detection system},

  author       = {Adler-Golden, Steven and Bernstein, Lawrence S and Bien, Fritz},

  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.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1988},

  month        = {1}

}

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