anion

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Related to anion: anion exchange, anion gap

an·i·on

(ăn′ī′ən)

A negatively charged ion, especially the ion that migrates to an anode in electrolysis.

[From Greek, neuter present participle of anienai, to go up : ana-, ana- + ienai, to go; see ei- in Indo-European roots.]

an′i·on′ic (-ŏn′ĭk) adj.

an′i·on′i·cal·ly adv.

anion

(ˈænˌaɪən)

(Chemistry) a negatively charged ion; an ion that is attracted to the anode during electrolysis. Compare cation

[C19: from ana- + ion]

anionic adj

an•i•on

(ˈænˌaɪ ən)

n.

1. a negatively charged ion that is attracted to the anode in electrolysis.

2. any negatively charged ion (opposed to cation).

[1825–35; < Greek, neuter of aniṓn, present participle of aniénai to go up]

an`i•on′ic (-ˈɒn ɪk) adj.

an`i•on′i•cal•ly, adv.

an·i·on

(ăn′ī′ən)

An ion that has a negative charge. Hydroxide and chloride ions are anions. Compare cation.

anion

An ion that carries a negative charge, especially one migrating to an anode during electrolysis.

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Noun

anion - a negatively charged ion

ion - a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons

hydroxide ion, hydroxyl ion - the anion OH having one oxygen and one hydrogen atom

superoxide anion, superoxide - the univalent anion O2-; "much of the O2 supporting cellular respiration is reduced to the superoxide anion O2-"

Translations

anioni

anion

アニオン陰イオン

anion

ânion

anyon

anion

[ˈænˌaɪən] n → anione m

References in periodicals archive ?

Superoxide anion donor K[O.sub.2] induced mechanical hyperalgesia, thermal hyperalgesia, paw edema, and MPO activity

The superoxide anion donor, potassium superoxide, induces pain and inflammation in mice through production of reactive oxygen species and cyclooxygenase-2

The pre-validated chromatography columns can come packed with either strong cation exchangers, weak cation exchangers or strong anion exchangers, eliminating manual column packing and cleaning, according to the company.

EMD Millipore introduces new Chromabolt resins

(1-4) They can be expressed by the general formula [[[M.sup.2+.sub.1-x] [M.sup.3+.sub.x][(OH).sub.2]].sub.x+][[A.sup.-n.sub.x/n]] x m[H.sub.2]O, where the cations [M.sup.2+] and [M.sup.3+] occupy the octahedral holes in a brucite-like layer, and the anion [A.sup.n-] is located in the hydrated interlayer galleries.

Fabrication of inhibitor anion-intercalated layered double hydroxide host films on aluminum alloy 2024 and their anticorrosion properties

Anion gap was calculated to further stratify metabolic acidosis and cases of diabetic ketoacidosis were the commonest in this category (47%).

PATTERN OF ACID BASE ABNORMALITIES IN CRITICALLY ILL PATIENTS

developed an improved synthesis using an insoluble modified amine-functionalized anion exchange resin as the etherification catalyst.

Ion exchange epoxies

One of the most common and important ROS is the superoxide anion. The tissue toxicity of superoxide anion seems to be based on its direct reactivity with numerous types of biological molecules (lipid, DNA, RNA, catecholamines, steroids, etc.).

ORAC using multiple radicals (ORAC-MR): new horizons in total antioxidant capacity measurement: there remains an interest in and need for valid, eliable in vitro antioxidant methods for R&D, product development and quality control purposes

Initial laboratory tests (Table 1) were clinically relevant for the following: arterial whole-blood pH, 7.34; [Pco.sub.2], 33 mmHg (4.4 kPa); serum bicarbonate, 18 mmol/L; serum ethanol, 10 mg/dL (2.17 mmol/L); and serum anion gap, 18 mmol/L.

Osmolal gap without anion gap in a 43-year-old man

Anion exchange ability, potential for sustained release, and biocompatibility of the LDHs and HDSs have made them useful in the uptake, storage, and controlled release of bioactive materials such as drugs and plant growth regulators [8-11].

Controlled release kinetics in hydroxy double salts: effect of host anion structure

Bromate (Br[O.sub.3.sup.-] anion) is a disinfection by-product (DBP) which is formed during the ozonation process of bromide containing waters.

Bromate removal from water using doped iron nanoparticles on multiwalled carbon nanotubes (CNTS)

It has extensive experience in automated plasmid preps and has always provided innovative solutions and state of the art methods in the field of plasmid midi processing based on anion exchange chromatography.

Macherey-Nagel GmbH & Co KG enters into co-marketing agreement with Andrew Alliance

It was concluded that the anion exchange sorption was involved in removing the chromate anion from the aqueous system into the surface of activated carbon.