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Protein test

Protein test

A500/0503

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Credit

ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY

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.

Release details

Model release not required. Property release not required.

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