Optics: measuring and testing – By dispersed light spectroscopy – With sample excitation
Patent
1988-06-29
1990-09-11
Evans, F. I.
Optics: measuring and testing
By dispersed light spectroscopy
With sample excitation
250288, G01N 2173
Patent
active
049557173
ABSTRACT:
A demand modulated electrothermal atomization plasma spectroscopy system intended to reliably and controllably atomize samples. The invention is used in conjunction with a plasma spectroscopic instrument, and includes a feedback control loop that monitors the rate of analyte consumption in a plasma torch and regulates the temperature of an electrothermal atomization means that supplies analyte material to the plasma torch. The feedback system in the preferred embodiment regulates atomization temperature based upon ion or photon count rates.
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Evans F. I.
Geochemical Services, Inc.
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