mass spectrometer ion source
61Direct-EI LC-MS interface — is a simple coupling technique between liquid chromatography and mass spectrometry (LC MS) developed by Achille Cappiello and coworkers.[1] It is based on the direct and efficient introduction of a liquid effluent into an electron ionization (EI) …
62Capillary electrophoresis — Infobox chemical analysis name = Capillary electrophoresis caption = acronym = CE classification =Electrophoresis analytes = Biomolecules Chiral molecules manufacturers = related = gel electrophoresis Two dimensional gel electrophoresis… …
63Spark ionization — (also known as spark source ionization()) is a method used to produce gas phase ions from a solid sample. The prepared solid sample is vaporized and partially ionized by an intermittent discharge or spark. [… …
64Natural scientific research in Canada — This article outlines the history of natural scientific research in Canada, including mathematics, physics, astronomy, space science, geology, oceanography, chemistry, biology, medical research and psychology. The social sciences are not treated… …
65Methane — Methane …
66comet — cometary /kom i ter ee/, cometic /keuh met ik/, cometical, adj. cometlike, adj. /kom it/, n. Astron. a celestial body moving about the sun, usually in a highly eccentric orbit, consisting of a central mass surrounded by an envelope of dust and… …
67Fragmentation (chemistry) — Fragmentation is a type of chemical dissociation. Fragmentation of a molecule can take place by a process of heterolysis or homolysis. It is a phenomenon observed in mass spectrometry where it is used as a tool to find the structural formula of a …
68Phoenix (spacecraft) — This article is about the Mars lander. For the Star Trek spacecraft, see Phoenix (Star Trek). For other uses, see Phoenix (disambiguation). Phoenix Mars Mission Artist s impression of the Phoenix spacecraft as it lands on Mars Operator NASA …
69Residual gas analyzer — A residual gas analyzer (RGA) is a small and usually rugged mass spectrometer, typically designed for process control and contamination monitoring in the semiconductor industry. Utilizing quadrupole technology, there exists two implementations,… …
70Réflectron — Empilement des électrodes d un réflectron de spectromètre de masse. Chaque électrode est polarisée au potentiel requis pour produire des équipotentielles régulièrement espacées. Un réflectron également appelé miroir électrostatique est un… …
