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of tyrosine gets nitrated, and that product then complexes with Hg(I) or Hg(II) ions to give a red colored precipitate. Millon's test is not specific for proteins; it also gives a positive test for other compounds containing the phenol
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33:. A few drops of the reagent are added to the test solution, which is then heated gently. A reddish-brown coloration or precipitate indicates the presence of
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residue which occur in nearly all proteins. The test was developed by the French chemist
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reaction are used along with it to confirm the presence of proteins.
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is an analytical reagent used to detect the presence of soluble
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and diluting with water, forming mercuric nitrate (Hg
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