lanthanum


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Related to lanthanum: Lanthanum oxide, Lanthanum carbonate

lanthanum

 (La) [lan´thah-num]
a chemical element, atomic number 57, atomic weight 138.91. (See Appendix 6.)

lan·tha·num (La),

(lan'thă-nŭm),
A metallic element, atomic no. 57, atomic wt. 138.9055; first of the rare earth elements (lanthanides).
[G. lanthanō, to lie hidden]

lanthanum

/lan·tha·num/ (La) (lan´thah-num) a chemical element, at. no. 57.

lanthanum (La)1

[lan′thənəm]
Etymology: Gk, lanthanein, to escape notice
a rare earth metallic element. Its atomic number is 57; its atomic mass is 138.91.

lanthanum2

a phosphate binder.
indication This drug is used to treat end-stage renal disease.
contraindications Hypophosphatemia and known hypersensitivity to this drug prohibit its use.

lan·tha·num

(lan'thă-nŭm)
A metallic element, atomic no. 57, atomic wt. 138.9055; first of the rare earth elements (lanthanides).
[G. lanthanō, to lie hidden]

lanthanum

a chemical element, atomic number 57, atomic weight 138.91, symbol La. See Table 6.
References in periodicals archive ?
b) lanthanum carbonate must be swallowed whole, as it is insoluble in water
The specific surface areas were seen to increase gradually with the increasing lanthanum content (Table 3) enhancing the adsorption performance.
The infrared (IR) spectra of Lanthanum cyanurate and cyanuric acid were recorded on an IR Prestige-21 Fourier transform spectrophotometer by dispersing samples in KBr pellets in 400-4000 [cm.
Manganese, having comparatively weak chemical affinity to interstitial elements, can not, in contrast to lanthanum and other rare-earth metals, refine chrome matrix of these impurities.
The neutron transmittance of the polarized lanthanum nuclear target, T is represented in terms of a transmittance of unpolarized target [T.
Chu HY, Zhu JG, Xie ZB, Li ZG, Cao ZH, Zeng Q (2001a) Effects of lanthanum on soil microbial biomass carbon and nitrogen in red soil.
The use of methanol removes the difficulty associated with the formation of precipitates of gels of varying composition that have complicated past attempts study the remarkable effect of metals such as Lanthanum.
While lanthanum toxicity is not a concern, low lanthanum solubility and low lanthanum serum levels have been key goals of Altair's RenaZorb development program.
Reilly's team was recently awarded a patent for a new electrode alloy that uses lanthanum, nickel, and tin as a replacement for cobalt.
The lanthanum salts used as spectroscopic buffer are known to form more stable molecules with phosphate than calcium does and indicate the releasing effect for calcium atoms.
In 1967, Trudeau and Freier (7) studied the use of lanthanum chloride to simplify the assay of calcium by atomic absorption spectrophotometry (AAS) (Fig.
In some experiments, sucrose was used as an osmotic stressor and lanthanum was added to the PW as an electron-dense diffusion tracer to stain the paracellular spaces for electron microscopy (Dietz et al.