ionic mass

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• mass spectrometer — n. (Physics, Chemistry) An analytical instrument which determines the mass of molecules of a substance or fragments of its molecules. It functions by injecting ionized moecules or molecular gragments into a vacuum chamber subjected to a strong… …   The Collaborative International Dictionary of English

• mass fragmentography — mass frag·men·tog·ra·phy .frag mən täg rə fē n, pl phies the combination of gas chromatography and mass spectrometry used to isolate and quantify ionic fragments characteristic of particular compounds by examining a selection of ions having… …   Medical dictionary

• 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 — 1. n., v., & adj. n. 1 a coherent body of matter of indefinite shape. 2 a dense aggregation of objects (a mass of fibres). 3 (in sing. or pl.; foll. by of) a large number or amount. 4 (usu. foll. by of) an unbroken expanse (of colour etc.). 5… …   Useful english dictionary

• Mass — 1. n., v., & adj. n. 1 a coherent body of matter of indefinite shape. 2 a dense aggregation of objects (a mass of fibres). 3 (in sing. or pl.; foll. by of) a large number or amount. 4 (usu. foll. by of) an unbroken expanse (of colour etc.). 5… …   Useful english dictionary

• ionic concentration — the number of moles of an ion that are contained in the unit volume of a solution or in the unit mass of solvent …   Medical dictionary

• high-resolution mass spectrometer — mass spectrometer mass spectrometer n. (Physics, Chemistry) An analytical instrument which determines the mass of molecules of a substance or fragments of its molecules. It functions by injecting ionized moecules or molecular gragments into a… …   The Collaborative International Dictionary of English

• Plasma desorption mass spectrometry — Infobox chemical analysis name = Plasma desorption mass spectrometry caption =Schematic representation of a plasama desorption time of flight mass spectrometer. acronym = PDMS classification =Mass spectrometry analytes = Organic molecules… …   Wikipedia

• SMILETRAP — is a Penning trap mass spectrometer located in Stockholm, Sweden. The name is an acronym, which stands for Stockholm Mainz Ion LEvitation TRAP.The facility includes a Penning trap mass spectrometer consisting of a hyperbolic precision Penning… …   Wikipedia

• chemical bonding — ▪ chemistry Introduction       any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …   Universalium

• chemical compound — Introduction  any substance composed of identical molecules consisting of atoms (atom) of two or more chemical elements (chemical element).       All the matter in the universe is composed of the atoms of more than 100 different chemical elements …   Universalium