Chemical ionization

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• Chemical ionization — (CI) is an ionization technique used in mass spectrometry.[1][2][3] Chemical ionization is a lower energy process than electron ionization. The lower energy yields less fragmentation, and usually a simpler spectrum. A typical CI spectra has an… …   Wikipedia

• Atmospheric pressure chemical ionization — Infobox chemical analysis name = Atmospheric pressure chemical ionization caption =Atmospheric pressure chemical ionization interface acronym = APCI classification =Mass spectrometry analytes = Organic molecules Biomolecules related = Chemical… …   Wikipedia

• Atmospheric Pressure Chemical Ionization — (chemische Ionisation bei Atmosphärendruck, APCI) ist ein Ionisierungsverfahren, das in Massenspektrometern verwendet wird. Es ist eine Form der chemischen Ionisierung bei atmosphärischen Druck. Eine Lösung des Analyten wird durch eine Kapillare… …   Deutsch Wikipedia

• Chemical potential — Chemical potential, symbolized by μ, is a measure first described by the American engineer, chemist and mathematical physicist Josiah Willard Gibbs. It is the potential that a substance has to produce in order to alter a system.[1] In broadest… …   Wikipedia

• Ionization — is the physical process of converting an atom or molecule into an ion by adding or removing charged particles such as electrons or other ions.This process works slightly differently depending on whether an ion with a positive or a negative… …   Wikipedia

• Chemical biology — is a scientific discipline spanning the fields of chemistry and biology that involves the application of chemical techniques and tools, often compounds produced through synthetic chemistry, to the study and manipulation of biological systems.… …   Wikipedia

• Ionization energies of the elements (data page) — …   Wikipedia

• Chemical stability — when used in the technical sense in chemistry, means thermodynamic stability of a chemical system.[1] Thermodynamic stability occurs when a system is in its lowest energy state, or chemical equilibrium with its environment. This may be a dynamic… …   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

• ionization energy — ▪ chemistry also called  ionization potential,    in chemistry, the amount of energy required to remove an electron from an isolated atom or molecule. There is an ionization energy for each successive electron removed; the ionization energy… …   Universalium