Method for detecting and quantifying carbon isotopes

Details Method for detecting and quantifying carbon isotopes Method for detecting and quantifying carbon isotopes

1982-01-25

1984-01-24

Smith, Alfred E.

Radiant energy

Ionic separation or analysis

Methods

250288, 436173, B01D 5944, H01J 4926

Patent

active

044278845

ABSTRACT:
A method for detecting and quantifying a carbon isotope at quantities of less than 1.times.10.sup.-12 gram at a statistical precision of better than 5% in a time period of less than 5 minutes by producing a carbon compound, selected from CO,CS.sub.2,CO.sub.2 and elemental carbon, from the carbon containing composition to be analyzed; and producing and detecting sufficient C.sup.- ions from the carbon compound at a known efficiency to provide at least 80 counts of carbon isotope ions per minute by mass spectrometry.

REFERENCES:
patent: 3786249 (1974-01-01), Anbar et al.
patent: 3885155 (1975-05-01), Anbar
patent: 4224031 (1980-09-01), Mee et al.

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