BRAINCAKEThin-Layer Chromatography
Thin-layer chromatography (TLC) is a quick way to find how many components a mixture contains, and to compare them with known substances.
The stationary phase is a thin layer of silica (SiO2) or alumina (Al2O3) on a glass, metal or plastic plate. The mobile phase is a solvent. Separation is by adsorption.
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Key terms in this lesson
- stationary phase
- The phase in chromatography that does not move, and interacts with the components of a mixture to different extents.
- mobile phase
- The phase in chromatography, a liquid solvent or gas, that moves through or over the stationary phase carrying the mixture's components.
More in Chromatography and Qualitative Analysis
- Chromatography
- Rf Values
- Gas Chromatography
- Retention Times and Peak Areas
- Qualitative Tests for Alkenes
- Qualitative Tests for Haloalkanes
- Qualitative Tests for Phenols
- Qualitative Tests for Carbonyls
All 10 lessons in Chromatography and Qualitative Analysis · All OCR A-level Organic Chemistry topics