Hydrogen collection through gas chromatography techniques
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In gas chromatography, the mobile phase (or "moving phase") is a carrier gas, usually an inert gas such as helium or an unreactivegas such as nitrogen. Helium remains the most commonly used carrier gas in about 90% of instruments although hydrogen is preferred for improved separations.
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HYDROGEN, AS A CARRIER GAS FOR GC, CAN BE GENERATED AT LOW PRESSURE ON A LOCAL BASIS TO PROVIDE SIGNIFICANT SAFETY AND CONVENIENCE COMPARED TO THE USE OF TANK GAS.
When gas chromatography (GC) is used to separate a complex mixture, selection of the appropriate carrier gas and the optimum source for the carrier gas in GC are critical decisions for the laboratory manager. The manager should select the carrier gas that provides the desired separation in the minimum period of time to optimize the throughput of the laboratory. In addition, once the appropriate gas has been selected, the manager must then evaluate the various potential sources of that gas to determine how it should be supplied to ensure laboratory safety, convenience, and minimize the cost of the gas.
When gas chromatography (GC) is used to separate a complex mixture, selection of the appropriate carrier gas and the optimum source for the carrier gas in GC are critical decisions for the laboratory manager. The manager should select the carrier gas that provides the desired separation in the minimum period of time to optimize the throughput of the laboratory. In addition, once the appropriate gas has been selected, the manager must then evaluate the various potential sources of that gas to determine how it should be supplied to ensure laboratory safety, convenience, and minimize the cost of the gas.
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