Protein test

Protein test

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Caption: Protein test. Conical flasks containing negative (left) and positive (right) tests for proteins using copper (II) sulphate solution (light blue, left). The peptides in the protein form a complex with the copper (II) ions (replacing the water molecules that were present), turning the solution a deep blue colour.

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Keywords: amine, amino acid, analysing, analysis, analytical, biuret, chemical, chemistry, colour change, comparing, comparison, complex, conical flask, contrast, copper (ii) sulphate, copper sulphate, couple, duo, equipment, experiment, experimental, hydrated, indicator, ion, ionic, laboratory, negative, pair, positive, protein, reaction, result, results, test, testing, two

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