Biology A-Level
Identification using standards and standardised conditions
What Identification using standards and standardised conditions means in Biology A-Level, as defined for OCR.
Definition of Identification using standards and standardised conditions
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Reference: OCR
Because Rf depends on the solvent and conditions, comparisons must use the same solvent and temperature, so known standards are run alongside samples.
Topics that use Identification using standards and standardised conditions
- Biological molecules (OCR A-Level)
Related terms
- amylose and amylopectin
- Benedict's test for reducing and non-reducing sugars
- Biuret test for proteins
- Bonding and R-group interactions
- Carbon, hydrogen and oxygen
- Cellulose and microfibrils
- Cholesterol
- Cohesion and surface tension
Using Identification using standards and standardised conditions in the exam
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