Process and device for gas-chromatographic separation
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METHOD AND DEVICE FOR QUALITATIVELY AND / OR QUANTITATIVELY EXAMINING LIQUID STARTING MATERIAL
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Gas chromatographic sepn. process
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Gas chromatographic separation using controlled carrier gas - passed through dispenser for two=stage process enabling rapid enrichment of investigation substances
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Detaining part of sample for cold chromatograph column - while unwanted materials are removed before remainder is fed into heated column
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UV sensor
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Sample injection or extraction head for gaseous or liquid fluids
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Method and apparatus for freezing samples
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Chromatograph
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Gas chromatograph and method for gas chromatographic separation
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Cold-sample infeed system for capillary gas chromatography
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Contact thermometer operated heater control circuit - has supply controlled by relay and triac connected to thermometer and optical coupler
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Contact thermometer two-step regulator fail=safe circuit - switches irreversibly non-critical for excessive transfer resistance
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Safety circuit for two point temp. controller - has solid state circuit that prevents heating circuit activation if temp. sensor is not connected
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Automatically operated transfer flask - for liquid chromatography
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Automatically operated transfer flask - for liquid chromatography
