ionization


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Related to ionization: ionization radiation

ionization

 [i″on-ĭ-za´shun]
1. any process by which a neutral atom or molecule gains or loses electrons, thus acquiring a net charge, as the dissociation of a substance in solution into ions or ion production by the passage of radioactive particles.

i·on·i·za·tion

(ī'on-i-zā'shŭn),
1. Dissociation into ions, occurring when an electrolyte is dissolved in water or certain liquids or when molecules are subjected to electrical discharge or ionizing radiation.
2. Production of ions as a result of interaction of radiation with matter.
3. Synonym(s): iontophoresis

ionization

/ion·iza·tion/ (i″on-ĭ-za´shun)
1. any process by which a neutral atom or molecule gains or loses electrons, acquiring a net charge.

ionization

[ī′ənīzā′shən]
Etymology: Gk, ienai + izein, to cause
the process in which a neutral atom or molecule gains or loses electrons and thus acquires a negative or positive electrical charge. Ionizing radiation produces ionization in its passage through body tissue or other matter. Ionization can also cause cell death or mutation.
enlarge picture
Ionization

ion·i·za·tion

(ī'on-ī-zā'shŭn)
1. Dissociation into ions, occurring when an electrolyte is dissolved in water or certain liquids or when molecules are subjected to electrical discharge or ionizing radiation.
2. Production of ions as a result of interaction of radiation with matter; process by which a neutral force becomes either positive or negative.
3. Synonym(s): iontophoresis.

ionization

The state of an atom or group of atoms that has become positively charged by the loss of an orbital electron, or negatively charged by gaining an electron. All body electrolytes such as sodium, potassium, calcium and magnesium become ionized in solution. Gases may be ionized by means of electrical discharges.

ionization (īˈ·n·ī·zāˑ·shn),

n a process wherein an atom or a molecule loses or gains at least one electron to form an ion (a charged particle).
Enlarge picture
Ionization.

ion·i·za·tion

(ī'on-ī-zā'shŭn)
Dissociation into ions, occurring when an electrolyte is dissolved in water or certain liquids or when molecules are subjected to electrical discharge or ionizing radiation.

ionization (ī´änizā´shən),

n the process or the result of a process by which a neutral atom or molecule acquires either a positive or negative charge.
ionization chamber,
ionization, chamber, air-equivalent,
n See chamber, ionization, air-equivalent.
ionization density,
n the number of ion pairs per unit volume.
ionization path (ionization track),
n the trail of ion pairs produced by ionizing radiation in its passage through matter.
ionization potential,
n the potential necessary to separate one electron from an atom, resulting in the formation of an ion pair.

ionization

1. the dissociation of a substance in solution into ions.
2. iontophoresis.

ionization chamber
an enclosure containing two or more electrodes between which an electric current may be passed when the enclosed gas is ionized by radiation; used for determining the intensity of x-rays and other rays.
References in periodicals archive ?
In effect, this ionization mode broadens the range of compounds that may be ionized simultaneously [10].
Because ambient ionization MS provides great analytical sensitivity, specificity, and an immense depth and richness of molecular information in real time, directly from tissue samples, the prospect of using this technology in and outside of the OR is broad and very exciting.
But the low ionization potential suggests that lawrencium has one very weakly bound electron in the 7p orbital instead of the 6d.
However, for smaller analytes amenable to GC, high-energy electron ionization (EI), typically at 70 eV, is by far the most popular techique.
Therefore, different instruments are used to measure the different ranges, such as the Pirani gauge or diaphragm gauge to measure a wide ranging vacuum from atmospheric pressure to the low vacuum range and the ionization vacuum gauge to measure the range from a medium vacuum to a high vacuum.
The third patent, number 7,714,281 "Apparatus for Holding Solids for Use with Surface Ionization Technology" enables more precise location of the desorption ionization region in order to improve the spatial resolution available for determination of chemicals present on surfaces.
Pulsing ionization systems offer good discharge times, the measure of rate of charge neutralization.
In earlier work we showed ionization air purifiers, which are meant to remove particles from the air, to be producers of ozone, which itself causes a range of breathing problems and perhaps reduced resistance to infections," says Sergey Nizkorodov, an assistant professor of chemistry at Irvine.
First, let me clarify that this statement was formulated by a review of all evidenced-based literature; none of which took into account the ORP, pH, or ionization of the fluid ingested.
3]He ionization chamber with the position sensitive, charged particle collection methods of a MicroMegas detector.
PerkinElmer introduced a new GC (Gas Chromatography) system featuring the TurboMatrix Headspace Trap for analysis of off-flavor components in beer using flame ionization.
The LiquiTech system, which employs a copper/silver ionization process, is installed in more than 500 hospital and nursing home facilities across the country.