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Title: Ambient methods and apparatus for rapid laser trace constituent analysis

Abstract

A method and apparatus are disclosed for measuring trace amounts of constituents in samples by using laser induced breakdown spectroscopy and laser induced fluorescence under ambient conditions. The laser induced fluorescence is performed at a selected wavelength corresponding to an absorption state of a selected trace constituent. The intensity value of the emission decay signal which is generated by the trace constituent is compared to calibrated emission intensity decay values to determine the amount of trace constituent present.

Inventors:
 [1];  [1];  [1];  [2]
  1. Idaho Falls, ID
  2. Blackfoot, ID
Issue Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
OSTI Identifier:
874532
Patent Number(s):
6407811
Assignee:
Bechtel BWXT Idano, LLC (Idaho Falls, ID)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
ambient; methods; apparatus; rapid; laser; trace; constituent; analysis; method; disclosed; measuring; amounts; constituents; samples; induced; breakdown; spectroscopy; fluorescence; conditions; performed; selected; wavelength; absorption; intensity; value; emission; decay; signal; generated; compared; calibrated; values; determine; amount; laser induced; induced fluorescence; trace amount; /356/

Citation Formats

Snyder, Stuart C, Partin, Judy K, Grandy, Jon D, and Jeffery, Charles L. Ambient methods and apparatus for rapid laser trace constituent analysis. United States: N. p., 2002. Web.
Snyder, Stuart C, Partin, Judy K, Grandy, Jon D, & Jeffery, Charles L. Ambient methods and apparatus for rapid laser trace constituent analysis. United States.
Snyder, Stuart C, Partin, Judy K, Grandy, Jon D, and Jeffery, Charles L. Tue . "Ambient methods and apparatus for rapid laser trace constituent analysis". United States. https://www.osti.gov/servlets/purl/874532.
@article{osti_874532,
title = {Ambient methods and apparatus for rapid laser trace constituent analysis},
author = {Snyder, Stuart C and Partin, Judy K and Grandy, Jon D and Jeffery, Charles L},
abstractNote = {A method and apparatus are disclosed for measuring trace amounts of constituents in samples by using laser induced breakdown spectroscopy and laser induced fluorescence under ambient conditions. The laser induced fluorescence is performed at a selected wavelength corresponding to an absorption state of a selected trace constituent. The intensity value of the emission decay signal which is generated by the trace constituent is compared to calibrated emission intensity decay values to determine the amount of trace constituent present.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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Works referenced in this record:

Quantitative Analysis of Aluminum Impurities in Zinc Alloy by Laser-Induced Breakdown Spectroscopy
journal, January 1997


Focus on slurry pumping
journal, February 1999


Basic investigations for laser microanalysis: II. Laser-induced fluorescence in laser-produced sample plumes
journal, July 1989


Internal standardization in laser induced fluorescence spectrometry of microplasmas produced by laser ablation of solid samples
journal, January 1990


Production control of metal alloys by laser spectroscopy of the molten metals. Part I. Preliminary investigations
journal, January 1996