Marsh test


Marsh test
Marsh test 'märsh- n a sensitive test for arsenic in which a solution to be tested is treated with hydrogen so that if arsenic is present gaseous arsine is formed and then decomposed to a black deposit of arsenic (as when the gas is passed through a heated glass tube)
Marsh James Ernest (1794-1846)
British chemist. Marsh spent considerable time studying poisons and their effects. He introduced his test for arsenic in 1836.

Medical dictionary. 2011.

Look at other dictionaries:

  • Marsh-Test — [mɑ:ʃ ; nach dem brit. Chemiker J. Marsh (1794– 1846)]: veraltetes Syn.: Marsh᾿ sche Probe: empfindlicher Arsennachweis, der auf der mittels naszierendem Wasserstoff vorgenommenen Red. von Arsenverb. zu gasförmigem Arsan beruht. Dieses zerfällt… …   Universal-Lexikon

  • Marsh test — The Marsh test is a highly sensitive method in the detection of arsenic, especially useful in the field of forensic toxicology when arsenic was used as a poison. It was developed by the chemist James Marsh and first published in 1836. Arsenic, in …   Wikipedia

  • marsh test — noun Usage: usually capitalized M Etymology: after James Marsh died 1846 British chemist : a sensitive test for arsenic in which a solution to be tested is treated with hydrogen so that if arsenic is present gaseous arsine is formed and then… …   Useful english dictionary

  • Marsh's test — Chem. a test to detect minimal amounts of arsenic. Also, Marsh test. [after British chemist James Marsh (1794 1846), who described such a test in 1836] * * * …   Universalium

  • Marsh's test — Chem. a test to detect minimal amounts of arsenic. Also, Marsh test. [after British chemist James Marsh (1794 1846), who described such a test in 1836] …   Useful english dictionary

  • Marsh v. Alabama — Supreme Court of the United States Argued December 7, 1945 Decided January 7, 1946 …   Wikipedia

  • Marsh funnel — The Marsh funnel viscometer is a simple device for measuring viscosity from the time it takes a known volume of liquid to flow from the base of a cone through a short tube. It is particularly used by mud engineers to check the quality of drilling …   Wikipedia

  • Marsh Court — Coordinates: 51°06′07″N 1°29′38″W / 51.101900°N 1.4938798°W / 51.101900; 1.4938798 …   Wikipedia

  • James Marsh (chemist) — James Marsh (September 2, 1794 ndash; June 21, 1846) was a British chemist who invented the Marsh test for detecting arsenic. Scientific work While Marsh was most famous for inventing the test that bears his name, he was also a skilled and… …   Wikipedia

  • James Marsh (químico) — James Marsh James Marsh (septiembre 2, 1794 junio 21, 1846) fue un químico británico que inventó la Prueba de Marsh para detectar arsénico. Trabajo científico Aunque Marsh fue más famoso por la invención de la prueba que lleva su nombre, también… …   Wikipedia Español