Results 21 to 30 of about 36,714 (273)

A summary of the variations in relative abundance of the lanthanides and yttrium in allanites and epidotes [PDF]

open access: yesBulletin of the Geological Society of Finland, 1985
Recalculation of 506 analyses of allanites and 53 analyses of epidotes has confirmed that these minerals preferentially concentrate the light lanthanides, but that the relative concentrations vary considerably with variation of the host rocks, with ...
M. Fleischer
doaj   +1 more source

Voltammetry in Determination of Trace Amounts of Lanthanides—A Review

open access: yesMolecules, 2023
This paper presents an overview of approaches proposed in the scientific literature for the voltammetric determination of rare earth elements (mainly cerium and europium individually, as well as various lanthanides simultaneously) in manifold kinds of ...
Malgorzata Grabarczyk   +2 more
doaj   +1 more source

Synthesis and Biomedical Applications of Lanthanides-Doped Persistent Luminescence Phosphors With NIR Emissions

open access: yesFrontiers in Chemistry, 2020
Persistent luminescence phosphors (PLPs) are largely used in biomedical areas owing to their unique advantages in reducing the autofluorescence and light-scattering interference from tissues.
Xinyuan Qin   +3 more
doaj   +1 more source

Valencies of the lanthanides [PDF]

open access: yes, 2017
The valencies of the lanthanides vary more than was once thought. In addition to valencies associated with a half-full shell, there are valencies associated with a quarter- and three-quarter-full shell.
Johnson, David A., Nelson, Peter G.
core   +1 more source

Probing the Production of Actinides under Different r-process Conditions [PDF]

open access: yes, 2019
Several extremely metal-poor stars are known to have an enhanced thorium abundance. These actinide-boost stars have likely inherited material from an r-process that operated under different conditions than the r-process that is reflected in most other ...
Arcones, A.   +3 more
core   +3 more sources

Imposing high-symmetry and tuneable geometry on lanthanide centres with chelating Pt and Pd metalloligands [PDF]

open access: yes, 2017
Exploitation of HSAB preferences allows for high-yield, one-pot syntheses of lanthanide complexes chelated by two Pd or Pt metalloligands, [MII(SAc)4]2− (SAc− = thioacetate, M = Pd, Pt).
Bendix, Jesper   +5 more
core   +2 more sources

Lanthanides in Methylotrophy [PDF]

open access: yesCurrent Issues in Molecular Biology, 2019
Lanthanides were previously thought to be biologically inert owing to their low solubility; however, they have recently been shown to strongly impact the metabolism of methylotrophic bacteria. Leading efforts in this emergent field have demonstrated far-reaching impacts of lanthanide metabolism in biology; from the identification of novel roles of ...
Skovran, Elizabeth   +2 more
openaire   +2 more sources

LANTANIDES (Y, La, Ce, Pr, Nd, Sm) AND ACTINIDS (Th, U) IN SOILS OF THE HIBINO-LOVOZERO PROVINCE

open access: yesБюллетень Почвенного института им. В.В. Докучаева, 2010
In the Khibinsko-Lovozero district of the Kola Peninsula, the territory is divided into three geochemically different areas. In the background area near Umbozero, both mineral and peated samples contain all rare metals below clark: lanthanides and ...
Yu. Vodianitsky   +2 more
doaj   +1 more source

The effect of lanthanides on the accumulation of rubber (1,4-Cis-polyizoprene) in Dandelion Crimean-Sagyz (Taraxacum hybernum) Under adverse climate, and its environmental consequences [PDF]

open access: yesCaspian Journal of Environmental Sciences, 2020
The stimulating effect of lanthanides on the accumulation of rubber in the roots of dandelion Taraxacum hybernum (Krym-saghyz) was demonstrated                                                  along with its environmental consequences.
Vladimir Nikolaevich Vorob’ev   +4 more
doaj   +1 more source

Influence of diluent alkyl substitution on the extraction of Am(III) and Eu(III) by a 6,6’-bis(1,2,4-triazin-3-yl)-2,2’-bipyridine ligand dissolved in alkylated cyclohexanone Diluents [PDF]

open access: yes, 2012
Several alkylated cyclohexanones were investigated as potential diluents for the selective extraction of Am(III) from Eu(III) from nitric acid solutions by the CyMe4-BTBP ligand.
Distler, Petr   +5 more
core   +1 more source

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