Combined Science GCSE
Identification using reference values
What Identification using reference values means in Combined Science GCSE, as defined for AQA.
Definition of Identification using reference values
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Reference: AQA
A known reference substance must be run on the same chromatogram under the same conditions to identify a compound by matching R_f values.
Topics that use Identification using reference values
- Chromatography (AQA GCSE)
Related terms
- Chromatogram
- Chromatography
- Distribution between phases
- Identification by comparison
- Identification of substances
- Impure substance
- Measurement from a baseline
- Pure substance
Using Identification using reference values in the exam
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