Method and apparatus for spectroscopy of the optical...

Details Method and apparatus for spectroscopy of the optical... Method and apparatus for spectroscopy of the optical...

2007-05-15

2007-05-15

Evans, F. L. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

Reexamination Certificate

active

10529127

ABSTRACT:
A method for spectroscopy of the optical emission of a liquid excited by a pulsed laser focused on the surface thereof is such that the area of analysis is scanned by a laminar discharge of gas whose velocity and section are such that it is possible to remove the residues of the plasma suspended in the gas, resulting from a first laser pulse, before the subsequent laser pulse occurs.

REFERENCES:
patent: 5583634 (1996-12-01), Andre et al.
patent: WO 02/063284 (2002-08-01), None
Aragon C. et al., “Determination of Carbon Content in Molten Steel Using Laser-Induced Breakdown Spectroscopy”; Applied Spectroscopy, The Society for Applied Spectroscopy. Baltimore, US, vol. 47, No. 5, May 1, 1993, pp. 606-608, XP000363249, ISSN: 0003-7028.
Rusak D. A. et al., “Fundamentals and Applications of Laser-Induced Breakdown Spectroscopy”; Critical Reviews in Analytical Chemistry, CRC Press Inc., Boca Raton, FL, US, vol. 27, No. 4, 1997, pp. 257-290, XP001090876, ISSN: 1040-8347.
Int'l Search Report for PCT/FR03/50033.

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