Chromatographic analysis

Details Chromatographic analysis Chromatographic analysis

1979-10-17

1981-06-09

Swisher, S. Clement

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

7386483, G01N 3108

Patent

active

042716977

ABSTRACT:
An analysis of the concentration of the individual components of a sample is obtained using a chromatographic analyzer where the concentrations of the individual components or the sensitivity of the detector to the individual components vary over a wide range. The sample is injected into a first chromatographic column and trace components of interest are eluted to a detector for measurement. The major components are backflushed, diluted, provided to a second chromatographic column and then eluted to a detector for measurement. The dilution of the major components ensures the linearity of the detector response. Analysis of both the trace components and major components is thus provided.

REFERENCES:
patent: 3925019 (1975-12-01), Small
patent: 4036062 (1976-08-01), Cruzan
patent: 4036063 (1977-07-01), Roof
patent: 4070913 (1977-07-01), Roof
patent: 4186607 (1980-02-01), Porter et al.

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