Millon's reagent

Millon's reagent is an analytical reagent used to detect the presence of soluble proteins. 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 tyrosine residue which occur in nearly all proteins.^[1]

Millon's test is not specific for proteins (it actually detects phenolic compounds), and so must be confirmed by other tests for proteins such as the biuret test and the ninhydrin reaction.

The reagent is made by dissolving metallic mercury in nitric acid and diluting with water.

The test was developed by the French chemist Auguste Millon (1812–67).

See also: Benedict's solution

References

1. ^ Walsh, Edward O'Farrell (1961). An Introduction to Biochemistry. London: The English Universities Press Ltd. pp. 406–407. OCLC 421450365. 

This article about analytical chemistry is a stub. You can help Wikipedia by expanding it.v · Categories: Chemical tests Mercury compounds Analytical chemistry stubs Wikimedia Foundation. 2010. Игры ⚽ Поможем решить контрольную работу Foster Islands (Tasmania) Francis Turatello Look at other dictionaries: Millon's reagent — Mil·lon s reagent mē lōnz or Mil·lon reagent mē lōn n a solution that is usu. made by dissolving mercury in concentrated nitric acid and diluting with water and that when heated with phenolic compounds gives a red coloration used as a test esp.… …   Medical dictionary millon's reagent — (ˈ)mē|lōⁿz noun or millon reagent Usage: usually capitalized M Etymology: after Eugène Millon died 1865 French chemist : a solution that is usually made by dissolving mercury in concentrated nitric acid and diluting with water and that when… …   Useful english dictionary Reagent — Reagents, such as sulfur (pictured), are the starting materials that are used in chemical reactions. A reagent is a substance or compound that is added to a system in order to bring about a chemical reaction or is added to see if a reaction… …   Wikipedia millon reagent — noun see millon s reagent …   Useful english dictionary Millon test (reaction reagent) — Mil·lon (test (reaction, reagent) (me yawґ) [Auguste Nicolas Eugиne Millon, French chemist, 1812–1867] see under test …   Medical dictionary Reagent — A substance used to produce a chemical reaction to detect, measure, produce, etc. other substances. * * * Any substance added to a solution of another substance to participate in a chemical reaction. [Mod. L. reagens] amino acid r. a r. used in… …   Medical dictionary Millon — Auguste N.E., French chemist, 1812–1867. See M. reaction, M. reagent, M. Nasse test …   Medical dictionary Millon test — (for proteins and nitrogenous compounds) a solution of 10 g of mercury and 20 g of nitric acid is diluted with water and decanted after standing 24 hours. This reagent gives a red color with proteins and other substances, such as tyrosine, phenol …   Medical dictionary Millon reagent — see under test …   Medical dictionary List of named inorganic compounds — Well known inorganic and organometallic compounds and reagents that are named after individuals include Adams catalyst (proposed to be PtOx) Adamsite (NH(C6H4)2AsCl) Adkins catalyst (Cu2Cr2O5) Attenburrow s Oxide (MnO2) Arduengo carbene (class of …   Wikipedia 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”