Method for obtaining the spectra of an unstable product

Details Method for obtaining the spectra of an unstable product Method for obtaining the spectra of an unstable product

1990-02-28

1991-01-01

Hannaher, Constantine

Radiant energy

Methods including separation or nonradiant treatment of test...

250288, 250339, 250343, 73 2337, 73 2335, G01N 3030, G01N 3000

Patent

active

049820893

ABSTRACT:
A method of obtaining the spectra of a product wherein the product is pas through a gas chromatograph in a stream of helium to separate the product into components, with the components then being passed through a spectrometer to obtain the spectra of the components. The components are chilled to a temperature below about minus 10 degrees Celsius and preferably below about minus 20 degrees Celsius to render the components stable and non-volatile.

REFERENCES:
patent: 4245494 (1981-01-01), Legewdre et al.
patent: 4432225 (1984-02-01), Hayes et al.
patent: 4440013 (1984-04-01), Adams
patent: 4764676 (1988-08-01), Doyle
patent: 4883958 (1989-11-01), Vestal

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