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

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

1.3K
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...
1.3K
Microbial Leaching01:27

Microbial Leaching

227
Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
227
Precipitation and Co-precipitation01:17

Precipitation and Co-precipitation

4.8K
Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
4.8K

You might also read

Related Articles

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

Sort by
Same author

Genomic analysis of <i>Botrytis cinerea</i> causing postharvest strawberry rot and the control effect of pydiflumetofen.

Frontiers in microbiology·2026
Same author

Physico-Chemical and Biological Evaluation of Spin-Coated Chromium-Doped Hydroxyapatite in Dextran Matrix Coatings.

Biomimetics (Basel, Switzerland)·2026
Same author

Emergence of Postharvest Strawberry Fruit Rot Caused by <i>Penicillium citrinum</i> in China and Its Whole-Genome Sequencing.

Journal of fungi (Basel, Switzerland)·2026
Same author

Physico-chemical behavior of magnesium-doped hydroxyapatite/chitosan composite layers in simulated physiological conditions.

Micron (Oxford, England : 1993)·2026
Same author

Dataset of physicochemical, microbiological, and plant root parameters of 135 soils from various urban land uses Blois city, France.

Data in brief·2026
Same author

Ofloxacin-Mediated Fluorescence Enhancement of Carbon Quantum Dots for Sensitive and Selective Detection in Pharmaceutical Analysis.

Journal of fluorescence·2025

Related Experiment Video

Updated: May 4, 2026

Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions
08:38

Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions

Published on: February 15, 2019

16.4K

Potentially toxic element fractionation in technosoils using two sequential extraction schemes.

Bashar Qasim1, Mikael Motelica-Heino

  • 1CNRS/ISTO Institut des Sciences de la Terre d'Orléans, UMR-CNRS 7327 Campus Géosciences, Université d'Orléans, 1A rue de la Férollerie, 41071, Orléans, France, bhq_chem@yahoo.com.

Environmental Science and Pollution Research International
|December 28, 2013
PubMed
Summary
This summary is machine-generated.

This study analyzed potentially toxic elements (PTEs) in contaminated soils using two extraction methods. Results show varying element mobility and soil fraction association, with significant amounts of Cd, Pb, and Zn being mobile and available to plants.

More Related Videos

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
09:38

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures

Published on: January 7, 2019

7.4K
Dissolved Solute Sampling Across an Oxic-Anoxic Soil-Water Interface Using Microdialysis Profilers
11:43

Dissolved Solute Sampling Across an Oxic-Anoxic Soil-Water Interface Using Microdialysis Profilers

Published on: March 24, 2023

2.7K

Related Experiment Videos

Last Updated: May 4, 2026

Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions
08:38

Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions

Published on: February 15, 2019

16.4K
Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
09:38

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures

Published on: January 7, 2019

7.4K
Dissolved Solute Sampling Across an Oxic-Anoxic Soil-Water Interface Using Microdialysis Profilers
11:43

Dissolved Solute Sampling Across an Oxic-Anoxic Soil-Water Interface Using Microdialysis Profilers

Published on: March 24, 2023

2.7K

Area of Science:

  • Environmental Science
  • Geochemistry
  • Soil Science

Background:

  • Technosoils from former mining and smelting sites are often contaminated with potentially toxic elements (PTEs).
  • Understanding the chemical fractionation and mobility of PTEs is crucial for assessing environmental risks and developing remediation strategies.

Purpose of the Study:

  • To compare the chemical fractionation of Zn, Pb, Cd, As, and Sb in contaminated technosoils using Tessier's and a modified BCR sequential extraction schemes.
  • To determine the partitioning of these PTEs into acid soluble, reducible, oxidizable, and residual fractions.
  • To assess the mobility and bioavailability of PTEs in technosoils from two distinct French contaminated sites.

Main Methods:

  • Sequential extraction using Tessier's and a modified BCR scheme on technosoil samples from Mortagne-du-Nord (MDN) and La Petite Faye (LPF).
  • Analysis of Zn, Pb, Cd, As, and Sb partitioning into four defined fractions: acid soluble, reducible, oxidizable, and residual.
  • Comparison of extraction efficiencies and PTE distribution between the two schemes and across different soil fractions.

Main Results:

  • Zn, Cd, and Pb were predominantly found in acid-soluble and reducible fractions at the MDN site.
  • As, Sb, and Pb were mainly associated with the residual fraction at the LPF site.
  • Tessier's scheme extracted higher percentages of PTEs in the Fe-Mn oxide bound fraction, while the modified BCR scheme extracted more in the organic fraction.
  • The mobility order was Cd > Zn > Pb at MDN and As > Sb > Pb at LPF.
  • Significant amounts of Cd, Pb, and Zn were mobile, indicating potential bioavailability.

Conclusions:

  • Both extraction schemes provide valuable information on PTE fractionation, but differ in their efficiency for specific fractions.
  • PTEs exhibit site-specific fractionation patterns influenced by soil properties and contamination history.
  • The high mobility of Cd, Pb, and Zn suggests a potential risk to ecosystems and the need for further risk assessment and management strategies.