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The gas chromatograph (g.c.) that you will be using employs a flame ionization detector and needs two gases, helium, and hydrogen. The carrier gas, which differs depending on the type of GC being utilized, is crucial. The carrier gas must be inert chemically, dry, and oxygen-free.
Polar chemicals, such as butanol, will be absorbed on the column and move slowly if we employ the polar stationary phase. If they are polar, they will flow slowly, but non-polar chemicals, such as hexane, will move quickly. Given that they will move quickly, this is for the polar stationary base. The scenario will be entirely reversed when the polar non-polar stationary column is present, hence in the non-polar stationary situation. The order will be reversed, causing polar and non-polar molecules to migrate quickly. They'll start by absorbing a lot of energy.
An analytical tool used in science to evaluate analytes in a gas stream is called a flame ionization detector (FID). It is commonly employed in gas chromatography as a detector. This is a mass-sensitive instrument since it measures the number of ions per unit of time. With the right hydrogen generator, a hydrogen carrier may be produced from water on demand and offers a larger range of optimal linear velocities or flows than helium. It is also less expensive. With FID, it is simple to adjust for the additional hydrogen carrier gas by lowering the detector hydrogen flow in proportion.
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