Equipment | Chemical Analysis |Gas Chromatography

Gas Chromatography

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Gas Chromatography is a method used for isolating chemical substances from a gas sample, based on the different behaviors of various sample components. The sample is first placed into a flowing inert gas, typically helium or argon, which acts as a carrier. Liquid samples are vaporized before being shot into the gas stream. The flow of gas is then passed through a column packed or lined with a solid that causes the various components of the sample to flow at different velocities. The parts of the sample that have the most interaction with the solid flow slower and as a result, separate from those components that interact less. As the different components leave the column, they can be quantified by a sensor and/or gathered separately for further investigation.

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