cobalt

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cobalt

 (Co) [ko´bawlt]
a chemical element, atomic number 27, atomic weight 58.933. (See Appendix 6.)
cobalt 57 a radioisotope of cobalt, atomic mass 57, having a half-life of 270 days; used as a label for cyanocobalamin. Symbol 57Co.
cobalt 60 a radioisotope of cobalt, atomic mass 60, having a half-life of 5.27 years and a principal gamma ray energy of 1.33 MeV; used as a radiation therapy source. Symbol 60Co.

co·balt (Co),

(kō'bawlt),
A steel-gray metallic element, atomic no. 27, atomic wt. 58.93320; a bioelement and a constituent of vitamin B12; certain of its compounds are pigments, for example, cobalt blue.
[Ger. kobalt, goblin or evil spirit]

cobalt

A metallic element (atomic number 27; atomic weight 58.93) critical to the formation of red cells, maintenance of neural tissue, and in certain metabolic reactions. Cobalt is the central ion in vitamin B12; it is present in dairy products, organ meats, shellfish and sea vegetables.

COBALT

Cardiology A clinical study–Continuous Infusion vs Double-Bolus Administration of Alteplase—designed to compare the effect on M&M of Pts undergoing AMI of accelerated–which has now become the standard administration of alteplase–over 90 mins, with 2 bolus doses of alteplase given 30 mins apart. See Alteplase. Cf GUSTO.

co·balt

(Co) (kō'bawlt)
A steel-gray metallic element, atomic no. 27, atomic wt. 58.93320; a bioelement and a constituent of vitamin B12; certain of its compounds are pigments, e.g., cobalt blue.
[Ger. kobalt, goblin or evil spirit]

cobalt

An element in the vitamin B12 molecule. The isotope Cobalt-60 is a powerful emitter of gamma rays and is used as a radiation source for sterilizing medical materials and in the treatment of cancer.

co·balt

(kō'bawlt)
A steel-gray metallic element; constituent of vitamin B12; some compounds are pigments.
[Ger. kobalt, goblin or evil spirit]
References in periodicals archive ?
* cobaltous sulphate is normally added to electrowinning circuits to reduce lead-anode corrosion and thereby cathode-lead contamination.
Pantothenate; 20 vitamin [B.sub.6]; 0.05 mg vitamin [B.sub.12]; 0.5 mg D-Biotin; 6 mg folic acid; 200 mg vitamin C; 300 mg inositol, Mn; 118 mg as manganese sulfate; Zn, 375 mg as zinc oxide; Cu, 15 mg copper as copper sulfate; Co, 10 mg as cobaltous carbonate; I, 13.75 mg as potassium iodate; Se, 0.50 mg as sodium selenite; Mg, 10 mg as magnesium oxide.
Iron(III) nitrate, cobaltous nitrate, magnesium oxide, calcium carbonate, and concentrated hydrochloric acid 32% were obtained from Sigma-Aldrich South Africa
Similar microcavity formation was noted with inclusion of water soluble salts (potassium acetate, cobaltous chloride, calcium nitrate) in crosslinked epoxy samples exposed to ambient temperature water immersion (142).