isotopic mass
21Gas chromatography-mass spectrometry — (GC MS) is a method that combines the features of gas liquid chromatography and mass spectrometry to identify different substances within a test sample. Applications of GC MS include drug detection, fire investigation, environmental analysis,… …
22Atomic mass unit — unified atomic mass unit Unit system: SI recognized unit Unit of... mass Symbol: u Unit conversions 1 u in... is equal to...    dalton …
23Inductively coupled plasma mass spectrometry — ICP MS Instrument Acronym ICP MS Classification Mass spectrometry Analytes atomic and polyatomic species in plasma, with exceptions; usually inte …
24Accelerator mass spectrometry — Infobox chemical analysis name = Accelerator mass spectrometry caption =Accelerator mass spectrometer at Lawrence Livermore National Laboratory acronym = AMS classification =Mass spectrometry analytes = Organic molecules Biomolecules… …
25Secondary ion mass spectrometry — Infobox chemical analysis name = Secondary ion mass spectrometry caption =CAMECA IMS3f Magnetic SIMS Instrument acronym = SIMS classification =Mass spectrometry analytes = Solid surfaces, thin films related = Fast atom bombardment… …
26Static secondary ion mass spectrometry — Static secondary ion mass spectrometry, or static SIMS is a technique for chemical analysis including elemental composition and chemical structure of the uppermost atomic or molecular layer of a solid which may be a metal, semiconductor or… …
27Atomic mass constant — In physics and chemistry, the atomic mass constant, m u, is one twelfth of the mass of an unbound atom of the carbon 12 nuclide at rest and in its ground state. [GoldBookRef|title=atomic mass constant|url=http://goldbook.iupac.org/A00497.html] It …
28Flowing afterglow mass spectrometry — Flowing afterglow mass spectrometry, FA MS, is a sensitive and quantitative mass spectrometry analytical approach that offers a route to on line, real time deuterium abundance measurements in water vapour in breath and above aqueous liquids,… …
29Nominal mass — The nominal mass is the integer mass of the most abundant naturally occurring stable isotope of an element. The nominal mass of a molecule is the sum of the nominal masses of the elements in its empirical formula.[1] H2O = 18 See also Mass (mass… …
30Water mass — An oceanographic water mass is an identifiable body of water which has physical properties distinct from surrounding water. Properties include temperature, salinity, chemical isotopic ratios, and other physical quantities. Common water masses in… …
