- thomson mass spectrograph
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English-Tamil dictionary. 2014.
thomson mass spectrograph
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Mass spectrometry — (MS) is an analytical technique that measures the mass to charge ratio of charged particles.[1] It is used for determining masses of particles, for determining the elemental composition of a sample or molecule, and for elucidating the chemical… … Wikipedia
mass spectrometry — or mass spectroscopy Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields. A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph … Universalium
Mass spectrum — Electron ionization mass spectrum of toluene [4]. Note parent peak corresponding to molecular mass M = 92 (C7H8+) and highest peak at M 1 = 91 (C7H7+, quasi stable tropylium cation). A mass spectrum is an inten … Wikipedia
Thomson , Sir Joseph John — (1856–1940) British physicist Thomson, who was born in Manchester, entered Owens College (later Manchester University) at the age of 14. After studying engineering and then the sciences, he won a scholarship to Trinity College, Cambridge… … Scientists
Thomson , Sir George Paget — (1892–1975) British physicist George Thomson was the son of J.J. Thomson, the discoverer of the electron. He was born in Cambridge and educated at the university there, where he taught (1914–22). He was then appointed to the chair of physics at… … Scientists
Mass-to-charge ratio — Charge to Mass ratio SI quantity dimension: M/(I⋅T) SI unit: kg/C other units: Th The mass to charge ratio ratio (m/Q) is a physical quantity that is widely used in the electrodynamics of c … Wikipedia
History of mass spectrometry — The history of mass spectrometry dates back more than one hundred years and has its roots in physical and chemical studies regarding the nature of matter. The study of gas discharges in the mid 19th century led to the discovery of anode and… … Wikipedia
Francis William Aston — Infobox Scientist name = Francis William Aston image size = 180px birth date = September 1 1877 birth place = Harborne , Birmingham death date = death date and age|1945|11|20|1877|9|1 death place = Cambridge nationality = United Kingdom field =… … Wikipedia
Aston , Francis William — (1877–1945) British chemist and physicist Aston was born in Harborne, England, the son of a metal merchant. He was educated at Mason College, the forerunner of Birmingham University, where he studied chemistry. From 1898 until 1900 he did… … Scientists
Aston, Francis William — ▪ British physicist and chemist born Sept. 1, 1877, Harborne, Birmingham, Eng. died Nov. 20, 1945, Cambridge, Cambridgeshire British physicist who won the Nobel Prize for Chemistry in 1922 for his development of the mass spectrograph, a device… … Universalium
atom — /at euhm/, n. 1. Physics. a. the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical… … Universalium
