Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Silica Gel Column Chromatography: Overview01:10

Silica Gel Column Chromatography: Overview

Silica gel column chromatography is a technique for separating compounds using a column packed with silica gel as the stationary phase. This method relies on differences in the polarity of compounds. Based on their polarities, compounds move between the stationary phase (silica gel) and the mobile phase (the solvent), forming discrete bands in the column.
Polar components tend to bind strongly to the silica gel, causing them to move slowly through the column. In contrast, nonpolar compounds...
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is formed in...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Basaltic rocks analyzed by the Spirit Rover in Gusev Crater.

Science (New York, N.Y.)·2004
Same author

Mantle-derived peridotites in southwestern Oregon: relation to plate tectonics.

Science (New York, N.Y.)·1970
Same author

Rare Earth elements in returned lunar samples.

Science (New York, N.Y.)·1970
Same author

Dispersed and not-so-rare earths.

Science (New York, N.Y.)·1966

Related Experiment Video

Updated: Jul 12, 2026

An Aptamer-based Sensor for Unchelated Gadolinium(III)
05:15

An Aptamer-based Sensor for Unchelated Gadolinium(III)

Published on: January 9, 2017

Gadolinium: Distribution between Aqueous and Silicate Phases.

R L Cullers, L G Medaris, L A Haskin

    Science (New York, N.Y.)
    |August 7, 1970
    PubMed
    Summary

    This study investigated trivalent gadolinium partitioning between silicate and aqueous phases at high temperatures and pressures. Gadolinium

    Area of Science:

    • Geochemistry
    • High-temperature and high-pressure experimental petrology
    • Trace element partitioning

    Background:

    • Understanding trace element behavior in geological systems is crucial for interpreting Earth's processes.
    • Trivalent rare earth elements, like gadolinium, serve as important geochemical tracers.
    • High-pressure, high-temperature phase equilibria provide insights into magma evolution and ore formation.

    Purpose of the Study:

    • To quantify the partition coefficients of trivalent gadolinium (Gd³⁺) between silicate melts, silicate crystals, and aqueous fluids.
    • To investigate the influence of temperature and pressure on Gd³⁺ partitioning.
    • To compare experimental partitioning data with natural system estimates.

    Main Methods:

    • High-pressure, high-temperature piston-cylinder apparatus experiments.

    More Related Videos

    Laser-induced Breakdown Spectroscopy: A New Approach for Nanoparticle's Mapping and Quantification in Organ Tissue
    10:17

    Laser-induced Breakdown Spectroscopy: A New Approach for Nanoparticle's Mapping and Quantification in Organ Tissue

    Published on: June 18, 2014

    Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging
    13:21

    Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging

    Published on: July 21, 2011

    Related Experiment Videos

    Last Updated: Jul 12, 2026

    An Aptamer-based Sensor for Unchelated Gadolinium(III)
    05:15

    An Aptamer-based Sensor for Unchelated Gadolinium(III)

    Published on: January 9, 2017

    Laser-induced Breakdown Spectroscopy: A New Approach for Nanoparticle's Mapping and Quantification in Organ Tissue
    10:17

    Laser-induced Breakdown Spectroscopy: A New Approach for Nanoparticle's Mapping and Quantification in Organ Tissue

    Published on: June 18, 2014

    Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging
    13:21

    Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging

    Published on: July 21, 2011

  • Analysis of silicate phases (forsterite, enstatite, diopside) and coexisting aqueous phases.
  • Inductively Coupled Plasma Mass Spectrometry (ICP-MS) for trace element concentration measurements.

    • Main Results:

    • Constant distribution coefficients for Gd³⁺ were observed across a wide range of concentrations in forsterite, enstatite, and diopside.
    • Ratios of crystal/aqueous to melt/aqueous distribution coefficients align with estimates from natural systems.
    • The activity of Gd³⁺ in silicate melts is significantly lower (<1/100) than in aqueous phases at equivalent concentrations.

    Conclusions:

    • Trivalent gadolinium exhibits predictable partitioning behavior in silicate-water systems under experimental conditions.
    • Experimental data support the use of Gd³⁺ as a tracer in understanding magmatic and hydrothermal processes.
    • The low activity of Gd³⁺ in melts has implications for its incorporation into accessory minerals and its mobility in the Earth's crust.