Proteins
- Created by: Jasmin
- Created on: 13-01-14 21:15
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- Biuret test for proteins
- Detects peptide links
- 1. Test solution needs to be alkaline so add NaOH solution - equal amount as solution in test tube
- 2. Add copper ll sulphate solution in test tube
- Solution turns purple indicates the presence of peptide bonds - protein POSITIVE
- No protein solution stays blue NEGATIVE
- 2. Add copper ll sulphate solution in test tube
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