GAS CHROMATOGRAPHIC DEVICE

GAS CHROMATOGRAPHIC DEVICE

PURPOSE: To secure high analysis sensitivity in a gas chromatographic device. CONSTITUTION: A flow controller 151 controls a control valve 13 to keep the gas pressure in a sample vaporization chamber 11 constant in response to the detection signal delayed by a delay section 152. Even if the gas pres...

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Bibliographische Detailangaben
1. Verfasser: OMIYA KOJI
Format: Patent
Sprache:eng
Schlagworte:
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:PURPOSE: To secure high analysis sensitivity in a gas chromatographic device. CONSTITUTION: A flow controller 151 controls a control valve 13 to keep the gas pressure in a sample vaporization chamber 11 constant in response to the detection signal delayed by a delay section 152. Even if the gas pressure is momentarily increased when a sample is injected, the flow of the gas discharged through a split passage is not immediately increased, and a proper quantity of the sample corresponding to the split ratio is fed to a column.