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 ...
Ions result from atoms or molecules that have gained or lost one or more valence electrons, giving them a positive or negative charge. Those with a negative charge are called anions and those with a positive charge are called cations. These opposing charges frequently result in ionic bonds with...
Protons have a positive charge. Electrons are very small subatomic particles that orbit the nucleus in levels called shells. Electrons have a negative charge. Anions are atoms that have gained an electron Typically, for most reactions, the nucleus remains stable and only electrons are gained or ...
Because there are more unmeasured anions than unmeasured cations, this term is usually positive. The analysis of the various components has been covered in previous reviews.1,2 View article Renal, Electrolyte, and Acid-Base Assessment Guy M. Dugan, in Monitoring in Neurocritical Care, 2013 ...
Metabolic alkalosis induced by an excess of absorbable cations (positive DCAD) diminishes PTH's stimulation of renal vitamin D activation, resulting in perturbed Ca homeostasis.95,111 Inducing a state of metabolic acidosis by feeding an excess of absorbable anions (negative DCAD) augments Ca ...
Crystalline porous materials, especially inorganic porous solids such as zeolites, usually have negative frameworks with extra-framework mobile cations and are widely used for cation exchange. It is highly desirable to develop new materials with positive frameworks for selective anion exchange and separatio...
The positive and negative electrolytes are stored in two separate reservoirs and pumped through the cell compartments where energy is converted. The cell architecture provides RFBs with a unique virtue of decoupled energy capacity and power output, which gives RFBs tremendous design flex- ibility to...
17.Of or designating an ion, the anion, that is attracted to a positive electrode.阴离子的属于或表明离子,阴离子的;对阳电极有吸引力的 18.Separation/purification of DNA by solid phase extraction with 330 anion exchange resin阴离子交换树脂固相萃取分离纯化DNA ...
other. An atom becomes negatively charged if it gains extra electrons, and it becomes positively charged if it loses electrons. We use the wordionto refer to atoms that have a charge one way or another, and we use the wordscationandanionto specify whether the charge is positive or negative...
By co-polymerization of a monomer containing a positive or negative charge with a neutral monomer the fixed charge density can easily be controlled by the ratio of the two monomers. • Preparation ofblock polymersorpolymer mixturesof a neutral polymer with polymer containing anionic or cationic mo...