Measuring and testing – Gas analysis – With compensation detail
Patent
1996-05-15
1997-09-30
Williams, Hezron E.
Measuring and testing
Gas analysis
With compensation detail
73 2341, 73 2342, G01N 3004
Patent
active
056728107
ABSTRACT:
A gas chromatograph for analyzing a selected target component in a liquid sample, which also contains a solvent, has a sample injection port, a temperature control unit, a split ratio control unit and a vaporization control unit. The sample injection port contains a pre-column filled with a packing material capable of holding a liquid sample injected into the pre-column. The sample injection port has a carrier gas inlet, a split vent, and an opening connected to a column. The temperature control unit is for controlling temperature of the sample injection port, and the split ratio control unit is for controlling the split ratio, defined as the ratio between gas flow rate to the column and the rate of the gas being discharged through the split vent. The vaporization control unit serves to control both the temperature control unit and the split control unit in coordination with each other according to the boiling points of the target component and the solvent in the liquid sample.
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Larkin Daniel S.
Shimadzu Corporation
Williams Hezron E.
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