Isotope analysis with a mass spectrometer using small samples

Details Isotope analysis with a mass spectrometer using small samples Isotope analysis with a mass spectrometer using small samples

1978-07-03

1980-06-10

Anderson, Bruce C.

Radiant energy

Ionic separation or analysis

With sample supply means

250281, 73422GC, 250282, B01D 5944, H01J 3934

Patent

active

042074657

ABSTRACT:
The difference in the concentration of a selected isotope in a first material and a second material, which may be a reference material, is measured by means of a mass spectrometer. The analysis is carried out with only a small amount of sample by introducing only a small slug of sample of the first material into the mass spectrometer by means of a sample valve. If there is a sufficient quantity of the second material, the first material my be compared directly to the second material. Direct comparison is also used when the second material is a reference material. If there is also only a small supply of the second material then the first material is compared to a reference material and in like manner the sample valve is utilized to supply a small sample of the second material to the mass spectrometer to be compared to the reference material. An indirect comparison of the first and second materials is thus provided.

REFERENCES:
patent: 2714164 (1955-07-01), Riggle et al.
patent: 2880323 (1959-03-01), Reinecke et al.
patent: 3633426 (1972-01-01), Broerman
patent: 3924124 (1975-12-01), Favre et al.
patent: 3943363 (1976-03-01), Amblard
patent: 4043202 (1977-08-01), Etheridge
patent: 4046012 (1977-09-01), Studenick

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