thin-layer chromatography: meaning, definition, pronunciation and examples
LowTechnical/Scientific
Quick answer
What does “thin-layer chromatography” mean?
An analytical technique in chemistry where a liquid sample is separated into its components by migration on a thin layer of adsorbent material.
Audio
Pronunciation
Definition
Meaning and Definition
An analytical technique in chemistry where a liquid sample is separated into its components by migration on a thin layer of adsorbent material.
A simple, rapid, and inexpensive form of chromatography used to separate and identify compounds in a mixture, commonly employed in organic chemistry, biochemistry, and forensic science for qualitative analysis.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling of related terms may differ (e.g., 'colour' vs 'color' in visualisation).
Connotations
Identical technical connotations in both varieties.
Frequency
Equally low frequency in both varieties, confined to scientific contexts.
Grammar
How to Use “thin-layer chromatography” in a Sentence
[Subject] performed thin-layer chromatography on [sample].[Sample] was analysed by thin-layer chromatography.The separation was achieved using thin-layer chromatography.Vocabulary
Collocations
Examples
Examples of “thin-layer chromatography” in a Sentence
adjective
British English
- The thin-layer chromatography results were inconclusive.
- We need more thin-layer chromatography plates.
American English
- The thin-layer chromatography data supported our hypothesis.
- Follow the standard thin-layer chromatography protocol.
Usage
Meaning in Context
Business
Not used.
Academic
Used in chemistry, biochemistry, pharmacy, and forensic science research papers and laboratory manuals.
Everyday
Not used.
Technical
Core term in analytical chemistry laboratories for separation and identification of compounds.
Vocabulary
Synonyms of “thin-layer chromatography”
Neutral
Weak
Watch out
Common Mistakes When Using “thin-layer chromatography”
- Writing 'thin layer chromatography' without the hyphen (incorrect).
- Using it as a verb (e.g., 'I will thin-layer chromatography the sample' is wrong).
- Confusing it with paper chromatography (a different, though related, technique).
FAQ
Frequently Asked Questions
TLC is the standard abbreviation for Thin-Layer Chromatography.
Primarily qualitative, though it can be semi-quantitative with specialised equipment like densitometers.
Ultraviolet light is common. Iodine vapour or specific chemical sprays (like ninhydrin for amino acids) are also used.
TLC uses a thin layer of adsorbent (like silica gel) coated on a plate, offering better resolution, faster runs, and more versatility with solvents than paper, which uses cellulose paper as the stationary phase.
An analytical technique in chemistry where a liquid sample is separated into its components by migration on a thin layer of adsorbent material.
Thin-layer chromatography is usually technical/scientific in register.
Thin-layer chromatography: in British English it is pronounced /ˌθɪn leɪə ˌkrəʊməˈtɒɡrəfi/, and in American English it is pronounced /ˌθɪn leɪər ˌkroʊməˈtɑːɡrəfi/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: THIN LAYER = a very fine coating on a plate. CHROMATOGRAPHY = 'colour writing' (from Greek). So, it's 'colour writing on a thin layer' to see what's in a mixture.
Conceptual Metaphor
A race on a track (the thin layer) where different runners (compounds) move at different speeds based on their attraction to the surface.
Practice
Quiz
What is the primary purpose of thin-layer chromatography?