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

Voltammetric Techniques: Linear-Scan (E vs Time)01:12

Voltammetric Techniques: Linear-Scan (E vs Time)

Polarography is a classical voltammetric technique used to analyze electrochemical reactions. This method applies a linear potential sweep to a dropping mercury electrode (DME), and the resulting current is measured. A dropping mercury electrode is commonly used as the working electrode in polarography. It consists of a capillary tube filled with mercury, where the tiny droplet forms at the tip. This droplet continuously drops from the capillary, creating a new electrode surface for each...
Precipitation Gravimetry01:03

Precipitation Gravimetry

Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...

You might also read

Related Articles

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

Sort by
Same author

American oyster (Crassostrea virginica) as a biosentinel for radium: influence of age on radium-226 levels in shell and soft tissues.

Environmental pollution (Barking, Essex : 1987)·2026
Same author

Uranium-238 and radium-226 concentrations and partitioning in river sediments as indicators of shale-gas-related environmental impacts: The Kennebecasis River (New Brunswick, Canada).

Journal of environmental radioactivity·2026
Same author

Large-scale bryomonitoring of atmospheric trace elements in eastern Canada: Spatial patterns, ecological risk, and environmental drivers.

Environmental pollution (Barking, Essex : 1987)·2026
Same author

Seasonal patterns of mercury dynamics in thermokarst lakes from sporadic permafrost.

Environmental pollution (Barking, Essex : 1987)·2025
Same author

Mass spectrometry measurements of mercury isotope ratios support geochemical sourcing of archaeological cinnabar in the Andean region.

PloS one·2025
Same author

The Legacy of Mercury Contamination from Colonial Nonferrous Mining in the Southern Hemisphere.

Environmental science & technology·2025

Related Experiment Video

Updated: Jun 5, 2026

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil
12:03

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil

Published on: September 1, 2020

Predicting net mercury methylation in sediments using diffusive gradient in thin films measurements.

Olivier Clarisse1, Brian Dimock, Holger Hintelmann

  • 1Chemistry Department, Trent University, Peterborough, ON K9J 7B8, Canada. olivier.clarisse@umoncton.ca

Environmental Science & Technology
|January 13, 2011
PubMed
Summary

Diffusive gradient in thin film (DGT) probes effectively measured methylmercury (MMHg) in San Francisco Bay sediments. DGT-labile MMHg concentrations correlated strongly with mercury methylation rates, suggesting DGT

More Related Videos

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

Related Experiment Videos

Last Updated: Jun 5, 2026

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil
12:03

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil

Published on: September 1, 2020

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

Area of Science:

  • Environmental Chemistry
  • Geochemistry
  • Biogeochemistry

Background:

  • Methylmercury (MMHg) is a potent neurotoxin. Measuring its labile fraction in sediment pore water is crucial for understanding mercury cycling.
  • Diffusive gradient in thin film (DGT) technology offers a potential method for in situ measurements.

Purpose of the Study:

  • To deploy DGT sediment probes for measuring labile MMHg in San Francisco Bay mudflats.
  • To assess the relationship between DGT-measured labile MMHg and in situ mercury methylation rates.

Main Methods:

  • Deployment of DGT probes in three mudflat sediments for up to 30 hours.
  • Analysis of MMHg concentration depth profiles using DGT measurements.
  • Determination of MMHg net production rates using isotope-enriched mercury species in parallel cores.

Main Results:

  • DGT successfully measured labile MMHg concentrations in sediment pore waters with centimeter resolution.
  • Average DGT-labile MMHg concentrations ranged from 1.64 to 7.1 ng L(-1).
  • A strong positive linear relationship (R² = 0.79) was observed between MMHg net production rates and DGT-labile MMHg concentrations.

Conclusions:

  • DGT measurements accurately reflect labile MMHg concentrations in sediment pore waters.
  • Mercury methylation rates significantly influence MMHg accumulation by DGT devices.
  • DGT measurements show potential for predicting net mercury methylation rates in sediments.