Radiant energy – Ionic separation or analysis – With sample supply means
Patent
1986-05-02
1989-05-23
Evans, F. L.
Radiant energy
Ionic separation or analysis
With sample supply means
356 36, 356316, G01N 2173
Patent
active
048333220
ABSTRACT:
Methods and apparatus are provided for qualitative and quantitative determination of constituents of a sample of material. The method prepares the sample for analysis by mixing the sample with a preselected quantity of a preselected material that serves to transport and project the sample. The mixture may be pyrolyzed and/or injected into a plasma. A spectrometric detection is made of the sample in the plasma. The apparatus is a modified electrothermal vaporization furnace whose sample outlet is connected to the sample inlet of an inductively-coupled plasma-mass spectrometer (ICP-MS). An additional gas (oxygen) injection line is provided between the sample outlet of the furnace and the sample inlet of the ICP-MS.
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Forster Alan R.
Howard Robert A.
Williams Ernest P.
Evans F. L.
Shell Oil Company
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