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GRAPHITE SEALS FOR GAS AND LIQUID CHROMATOGRAPHY APPARATUS

GAS AND LIQUID CHROMATOGRAPHY APPARATUS FOR SCIENTIFIC AND INDUSTRIAL PURPOSES, NAMELY, SAMPLING DEVICES, AUTO SAMPLING DEVICES, SAMPLE INJECTION DEVICES, SAMPLING HEADS, SAMPLE HANDLING DEVICES, SAMPLE EXTRACTION DEVICES, THERMO DESORPTION DEVICES, CONTROL DEVICES, TRAP DEVICES, MASS FLOW CONTROL DEVICES, GAS PRESSURE CONTROL DEVICES, TEMPERATURE CONTROL DEVICES, FLOW SWITCHING DEVICES, EVAPORATOR TUBES, CAPILLARY BRANCHING JUNCTIONS, CAPILLARY CONNECTION JUNCTIONS, CARRIER GAS SUPPLY DEVICES, FRACTION COLLECTING DEVICES, TRANSFER CONDUITS, VALVES; SOFTWARE FOR CONTROLLING, SAMPLING, HANDLING AND ANALYZING IN CHROMATOGRAPHY APPARATUS; APPARATUS AND INSTRUMENTS FOR THE ANALYTICAL AND PREPARATORY TREATMENT OF SOLID, FLUID AND GASEOUS SAMPLES, NAMELY, SAMPLING DEVICES, AUTO SAMPLING DEVICES, SAMPLE INJECTION DEVICES, SAMPLING HEADS, SAMPLE HANDLING DEVICES, SAMPLE EXTRACTION DEVICES, THERMO DESORPTION DEVICES, CONTROL DEVICES, TRAP DEVICES, MASS FLOW CONTROL DEVICES, GAS PRESSURE CONTROL DEVICES, TEMPERATURE CONTROL DEVICES, FLOW SWITCHING DEVICES, EVAPORATOR TUBES, CAPILLARY BRANCHING JUNCTIONS, CAPILLARY CONNECTION JUNCTIONS, CARRIER GAS SUPPLY DEVICES, FRACTION COLLECTING DEVICES, TRANSFER CONDUITS, VALVES