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Title: System and method for high precision isotope ratio destructive analysis

Patent ·
OSTI ID:1086687
; ;

A system and process are disclosed that provide high accuracy and high precision destructive analysis measurements for isotope ratio determination of relative isotope abundance distributions in liquids, solids, and particulate samples. The invention utilizes a collinear probe beam to interrogate a laser ablated plume. This invention provides enhanced single-shot detection sensitivity approaching the femtogram range, and isotope ratios that can be determined at approximately 1% or better precision and accuracy (relative standard deviation).

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RLO1830
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Number(s):
8,477,304
Application Number:
13/050,546
OSTI ID:
1086687
Country of Publication:
United States
Language:
English

References (17)

Isotope ratio analysis on micron-sized particles in complex matrices by Laser Ablation-Absorption Ratio Spectrometry journal November 2009
Laser ablation in analytical chemistry—a review journal May 2002
Uranium enrichment using microorganisms patent November 2008
Measurement of uranium isotope ratios in solid samples using laser ablation and diode laser-atomic absorption spectrometry journal January 2001
Laser-triggered plasma apparatus for atomic emission spectroscopy patent October 2010
Spectrochemical analysis using a pulsed laser source journal April 1964
Laser Based Techniques for Ultra Trace Isotope Production, Spectroscopy and Detection journal March 2006
Resonance ionization mass spectrometry for precise measurements of isotope ratios journal November 2009
Evaluation of the n(235U)/n(238U) isotope ratio measurements in a set of uranium samples by thermal ionization mass spectrometry journal November 2005
Narrow and broad band diode laser absorption spectrometry—concepts, limitations and applications journal October 2002
In situ determination of uranium in soil by laser ablation-inductively coupled plasma atomic emission spectrometry journal February 1994
Diode laser absorption measurement of uranium isotope ratios in solid samples using laser ablation journal October 2002
Laser-based double beam absorption detection for aggregation immunoassays using gold nanoparticles journal December 2002
Microanalysis of minerals by laser ablation ICPMS and SIRMS journal October 1997
Isotope selective element analysis by diode laser atomic absorption spectrometry journal September 1998
Apparatus for plasma diagnostics patent November 1987
Measurement of uranium isotope ratios in solid samples using laser ablation and diode laser-excited atomic fluorescence spectrometry journal June 1999

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY