This image is not available for purchase in your country.

Biuret test for proteins

Biuret test for proteins

C038/6520

Rights Managed

This image is not available for purchase in your country.

Please contact your Account Manager if you have any query.

Credit

TURTLE ROCK SCIENTIFIC / SCIENCE PHOTO LIBRARY TURTLE ROCK SCIENTIFIC / SCIENCE PHOTO LIBRARY

Caption

Biuret test for proteins. The Biuret reagent contains copper(II) sulfate (CuSO4) and sodium hydroxide (NaOH), with potassium sodium tartrate (KNaC4H4O6) added to stabilize copper ions. Here equal amounts of blue-colored Biuret reagent were added to distilled water (left beaker, negative control) and to a solution of albumin (egg white, right beaker). The solution in the left beaker did not change color from blue, indicating no proteins. The solution in the right beaker turned violet (deep purple), indicating the presence of proteins.

Release details

Model release not required. Property release not required.

 {{ i.shot_duration ? i.shot_duration + ' ' : '' }}{{ i.shot_uhd ? '4K ' : i.hires ? 'HD ' : '' }}{{ i.spl_number }} R{{ i.license }}

  • Add to board
  • Similar {{ mediaType(i) }}