Method and apparatus for sample confirmation in gas chromatograp

Details Method and apparatus for sample confirmation in gas chromatograp Method and apparatus for sample confirmation in gas chromatograp

Filed on

1986-04-25

Date issued

1987-07-21

Examiner

Church, Craig E.

Patent Class

Radiant energy

SubClass

Ionic separation or analysis

SubSubClass

Cyclically varying ion selecting field means

Other Related Categories

250281, 250282, 364498, H01J 4938

Type

Patent

Status

active

Patent number

046820272

Description

ABSTRACT:
A method and apparatus for use in gas chromatography for confirming the presence of compounds in the sample. By directly comparing the transient decay time domain signals of the sample and of known compounds as detected in an ion cyclotron resonance mass spectrometer connected to the chromatographic column, one is able to effect sample confirmation without the computer intensive processes of Fourier transformation and analysis of the resulting mass spectrum.

REFERENCES:
patent: 3390265 (1968-06-01), Llewellyn
patent: 3461381 (1960-08-01), Nelson et al.
patent: 3505517 (1970-04-01), Llewellyn
patent: 3742212 (1973-06-01), McIver
patent: 3937955 (1976-02-01), Comisarow et al.
patent: 4365303 (1982-12-01), Hannah et al.
patent: 4464570 (1984-08-01), Allemann et al.
"Capillary Gas Chromatography/Fourier Transform Mass Spectrometery"-Robt White et al, Anal. Chem. 1982, 54, 2443-7.
"Fourier Transform Ion Cyclotron Resonance Mass Spectrometry", Baykut et al, Trends in Anal. Chem., vol. 5, No. 2, 1986, pp. 43 et seq.
"Coupling of HPLC and NMR", Buddrus et al, Organic Magnetic Resonance, vol. 13, No. 2, 1980, pp. 153 et seq.
"Fourier Transform Mass Spectrometry", Robt McIver, Jr., Smrtivsn Laboratory, No. 1980, pp. 18 et seq.

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