Process for elementary analysis by optical emission spectrometry on plasma produced by a laser in the presence of argon
First Claim
1. Process for the elementary analysis of a sample, characterized in that, in a natural atmosphere, it consists of simultaneously blowing an argon gas jet onto the sample with a flow rate of approximately 3 l/mn to be analyzed and focusing a laser beam onto said sample to be analyzed, so as to produce a plasma on the surface of said sample, analyzing a spectrum, (S'"'"') of the light radiation emitted by the plasma and determining, on the basis of said spectrum analysis, the elementary composition of the sample.
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Abstract
A process for simultaneously blowing a gas jet onto a sample 6 to be analyzed and subsequently focusing a laser beam 4 onto the sample so as to produce a plasma 12 on the surface of the sample. An analysis is made of the spectrum S'"'"' of the light radiation emitted by the plasma and this spectrum analysis provides the basis for determining the composition of the isotopic composition of the sample.
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Citations
3 Claims
- 1. Process for the elementary analysis of a sample, characterized in that, in a natural atmosphere, it consists of simultaneously blowing an argon gas jet onto the sample with a flow rate of approximately 3 l/mn to be analyzed and focusing a laser beam onto said sample to be analyzed, so as to produce a plasma on the surface of said sample, analyzing a spectrum, (S'"'"') of the light radiation emitted by the plasma and determining, on the basis of said spectrum analysis, the elementary composition of the sample.
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- Resources
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Current AssigneeCommissariat a L'Energie Atomique (French Alternative Energies and Atomic Energy Commission)
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Original AssigneeCommissariat a L'Energie Atomique (French Alternative Energies and Atomic Energy Commission)
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InventorsSemerok, Alexandre, Andre, Nadine, Mauchien, Patrick
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Primary Examiner(s)EVANS, FANNIE L
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Application NumberUS08/339,232Time in Patent Office761 DaysField of Search356/317, 356/318US Class Current356/318CPC Class CodesG01N 21/718 Laser microanalysis, i.e. w...
