Study resource
Purity, formulations and chromatography key terms
Study Purity, formulations and chromatography with curriculum-aligned Key Terms resources, practice links, and exam-focused support.
At a glance
key terms
Resource type
Topic
Purity, formulations and chromatography
Key terms
stationary phase
The phase in chromatography that remains fixed in place and does not move.
mobile phase
The phase in chromatography that moves and carries the substances to be separated.
Mobile phase
The phase that moves through the stationary phase, carrying substances with it during chromatography.
Stationary phase
The phase that remains fixed in place, against which substances are separated based on their distribution between the two phases.
Chromatography
A method used to separate mixtures and identify substances based on their movement through a stationary phase and a mobile phase.
Soluble substances
Substances that can dissolve in a solvent, allowing for separation and identification through techniques such as paper chromatography.
chromatogram
A visual representation of the separation of components in a mixture using chromatography.
mixture
A combination of two or more substances that are not chemically bonded together.
Chromatogram
A visual representation of the results of chromatography, showing the separation of substances.
Pure substance
A material that consists of only one type of particle, resulting in a single spot on a chromatogram.
chromatogram
A visual representation of the separation of substances in a mixture using chromatography.
mixture
A combination of two or more substances that are not chemically bonded together.
chromatogram
A visual representation of the separation of substances in a mixture, showing the positions of the spots.
unknown substance
A substance whose identity is not known and is being compared against known substances in chromatography.
Rf value
The ratio of the distance moved by a substance to the distance moved by the solvent front in chromatography.
chromatogram
A visual representation of the results of chromatography, showing the separated substances as spots.
Rf value
The ratio of the distance moved by a substance to the distance moved by the solvent front in chromatography.
chromatogram
A visual record of the separation of substances in a mixture, showing the positions of the spots corresponding to different components.
Rf value
The ratio of the distance moved by a substance to the distance moved by the solvent front in chromatography.
chromatogram
A visual representation of the results of chromatography, showing the separation of substances.
chromatography
A method used to separate mixtures and identify substances.
Rf value
The ratio of the distance moved by a substance to the distance moved by the solvent in chromatography.
Related topics