Knudsen effusion mass spectrometry
WebSep 7, 2024 · Lithium ion attachment mass spectrometry provides a non-specific, non-fragmenting, sensitive and robust method for the detection of volatile species in the gas phase. The design, manufacture and results of lithium based ion attachment ionisation sources for two different mass spectrometry systems are present WebJul 14, 2024 · Shornikov et al. [ 49 – 51] also used Knudsen effusion mass spectrometry to study the vaporization of 17 CaO–TiO 2 –SiO 2 system compositions from molybdenum cells in the temperature range of 1582–2529 K. The synthesized compositions were 25.60 to 50.00 mol % CaO, up to 60.67 mol % SiO 2, and 5.05 to 50.00 mol % TiO 2, including CaTiO 3.
Knudsen effusion mass spectrometry
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WebSep 3, 2024 · A time-of-flight chemical ionization mass spectrometer (CIMS) utilizing the Filter Inlet for Gas and Aerosol (FIGAERO) was deployed at a regional site 40 km north-west of Beijing and successfully identified and measured 17 sulfur-containing organics (SCOs are organo/nitrooxy organosulfates and sulfonates) with biogenic and anthropogenic … WebVaporization Studies of Olivine via Knudsen Effusion Mass Spectrometry G. C. C. COSTA1 AND N. S. JACOBSON2 1ORAU/NASA Post rDoctoral Fellow, NASA Glenn Research Center,Cleveland,OH 44135 [email protected] 2NASA Glenn Research Center,Cleveland,OH 44135 [email protected] Introduction Olivine is the major …
WebMay 20, 2024 · Vaporization behavior of In 2 O 3 was studied using the Knudsen effusion technique in the temperature range 1400–1610 K. Quartz effusion cells were employed. A magnet mass spectrometer with an ordinary focus and a sector-type analyzer was used. Heating of samples and molecular beam ionization were performed by electron impact. WebA design of and initial results from a Knudsen Effusion Mass Spectrometer (KEMS) are presented. The design was adapted from high temperature alloy studies with a view to …
WebKnudsen effusion mass spectrometry (KEMS) is a well-established technique for sampling high-temperature vapors from a Knudsen cell.[1–3] A Knudsen cell is a small enclosure which holds a condensed phase sample. The cell is heated uniformly, and an equilibrium vapor develops above the condensed phase. The effusion orifice has a well-defined WebJun 26, 2013 · The adsorption and vapor pressures of silver on nuclear moderator grade IG-110 graphite were measured in the range of 1000–1400 K. Knudsen Effusion Mass …
WebThis report reviews Knudsen effusion mass spectrometry (KEMS) as relates to thermodynamic measurements of it metals and alloys. First, general aspects are reviewed, with emphasis on the Knudsen-cell vapor source and molecular beam formation, and mass spectrometry issues germane to this type of instrument are discussed briefly. The …
WebMeasured the adsorption of Ag on NBG-17 nuclear grade graphite from 700 °C to 1000 °C by using Knudsen Effusion Mass Spectrometry and carried … tajemnice radosne jan paweł iiWebsampled by effusion through a small orifice in the cell. A molecular beam is formed from the effusing vapor and directed into a mass spectrometer for identification and pressure … basketball game in alabamaWebDec 26, 2024 · The study of the In–In 2 O 3 system was performed using Knudsen effusion mass spectrometry in the temperature range 930–1210 K, with a magnet mass spectrometer (MS-1301). Quartz effusion cells heated by a resistance furnace were employed. RESULTS. It was established that In(g) ... tajemnice radosne tekstWebMay 20, 2024 · Vaporization behavior of In 2 O 3 was studied using the Knudsen effusion technique in the temperature range 1400–1610 K. Quartz effusion cells were employed. A … tajemnice radosne ytbasketball game day program templateWebJan 25, 1990 · @article{osti_6618744, title = {Hydrogen pressures and dissociation enthalpies of americium and curium hydrides determined by Knudsen effusion mass spectrometry}, author = {Gibson, J K and Haire, R G}, abstractNote = {A Knudsen effusion mass spectrometric technique has been developed for the study of milligram-sized … basketball game 360 camerasWebSolid state and sub-cooled liquid vapour pressures of substituted dicarboxylic acids using Knudsen Effusion Mass Spectrometry (KEMS) and Differential Scanning Calorimetry ... tajemnice rozanca do druku