F324 - Module 3 - Flashcards in A Level and IB Chemistry

Phase

Physically distinctive form of a substance, such as the solid, liquid and gaseous states of ordinary matter.

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Mobile phase

Phase that moves in chromatography.

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Stationary phase

Phase that doesn't move in chromatography.

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Adsorption

Process by which a solid holds molecules of a gas or liquid or solute as a thin film on the surface of a solid or, more rarely, a liquid.

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Chromatogram

A visible record showing the result of separation of the components of a mixture by chromatography.

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Distance moved by solute/Distance travelled by solvent

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Retention time

Time for a component to pass from the column inlet to the detector.

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Chemical shift

Scale that compares the frequency of an NMR absorption with the frequency of the reference peak of TMS (0 ppm).

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Other cards in this set

Phase that moves in chromatography.

Mobile phase

Phase that doesn't move in chromatography.

Process by which a solid holds molecules of a gas or liquid or solute as a thin film on the surface of a solid or, more rarely, a liquid.

A visible record showing the result of separation of the components of a mixture by chromatography.

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