Laser spectrochemical analysis

Details Laser spectrochemical analysis Laser spectrochemical analysis

G - Physics

01

N

73/99

G01N 1/00 (2006.01) G01N 21/71 (2006.01) G01N 1/04 (2006.01) G01N 35/00 (2006.01)

Patent

CA 1103054

ABSTRACT A sample of material to be analyzed is applied in a thin layer to a substrate such as an elongated tape and then is illuminated by a laser beam of such wavelength and power that at least a portion of the sample is vapourized. The substrate is non-absorptive at the laser wavelength and therefore is unaffected by the laser beam. The vapourized matter is removed from the region at which vapourization takes place, and is subsequently excited in a plasma to facilitate analysis by a conventional spectrometer.

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