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

Precipitation Gravimetry01:03

Precipitation Gravimetry

15.7K
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...
15.7K
Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview01:19

Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview

2.2K
In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then...
2.2K
Precipitation Titration: Overview01:26

Precipitation Titration: Overview

10.2K
Precipitation titration involves the reaction of a titrant and an analyte to generate an insoluble precipitate. While precipitation titration uses various precipitating agents, silver nitrate is the most common precipitating reagent; titrations involving Ag+ are called argentometric titrations. Usually, the endpoint in a precipitation titration can be detected by visual indicators.
A precipitation titration curve demonstrates the change in concentration of the titrant or analyte upon adding the...
10.2K
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

2.0K
Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
2.0K
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences01:20

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences

1.5K
Inductively coupled plasma–mass spectrometry (ICP–MS) is a highly selective and sensitive technique for accurate elemental analysis. Though the analysis of ICP–MS mass spectra is comparatively straightforward, it is affected by spectroscopic and non-spectroscopic interferences. Spectroscopic interferences arise when the plasma contains ionic species with an m/z value the same as the analyte ion. Spectroscopic interference can be categorized as isobaric, polyatomic ions, and...
1.5K
EDTA: Indirect and Alkalimetric Titration01:23

EDTA: Indirect and Alkalimetric Titration

1.9K
Unlike direct titration, back-titration, and displacement titration, indirect titration is an EDTA titration method for quantifying anions. In the indirect titration method, anions are precipitated as their insoluble salts with excess metal ions. The filtrate containing the excess metal ions is directly titrated with standard EDTA until the endpoint is achieved. Another approach involves extracting the metal ion and back-titrating with standard EDTA to obtain the endpoint. In this way, the...
1.9K

You might also read

Related Articles

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

Sort by
Same author

Determination of diffusion coefficients through gels with non-negligible finite-volume effects in the compartments of the diffusion cell.

The Science of the total environment·2024
Same author

Simultaneous measurement of labile U(VI) concentration and (<sup>234</sup>U/<sup>238</sup>U) activity ratio using a Monophos®-based Diffusive Gradients in thin-films sampler.

Analytica chimica acta·2024
Same author

Release of indium from In<sub>2</sub>O<sub>3</sub> nanoparticles in model solutions and synthetic seawater.

The Science of the total environment·2024
Same author

Back Accumulation of Diffusive Gradients in Thin-Films Devices with a Stack of Resin Discs To Assess Availability of Metal Cations to Biota in Natural Waters.

Environmental science & technology·2023
Same author

A new tool for the determination of humic substances in natural waters: Pulsed voltammetry approach.

Talanta·2023
Same author

Performance of an Expert Sensory Panel and Instrumental Measures for Assessing Eating Fruit Quality Attributes in a Pear Breeding Programme.

Foods (Basel, Switzerland)·2023
Same journal

Retraction notice to "Effect of moisture content on greenhouse gas and NH<sub>3</sub> emissions from pig manure converted by black soldier fly" [Sci. Total Environ. 697 (2019) 133840].

The Science of the total environment·2026
Same journal

Modeling soil solution electrical conductivity across Europe.

The Science of the total environment·2026
Same journal

Microbiota under bloom stress: A review and meta-analysis of bloom-associated cyanopeptides, environmental stressors, and microbial shifts in free-living and host gut microbiomes.

The Science of the total environment·2026
Same journal

Environmental associations in spectral index-based soil salinity detection: A multi-region and multi-sensor assessment.

The Science of the total environment·2026
Same journal

Decoding seasonal urban heat dynamics at neighborhood-scale using explainable deep learning for climate-resilient, digital twin-ready green planning.

The Science of the total environment·2026
Same journal

The effects of microcystin-LR and its location within an environmental pool on rusty crayfish (Faxonius rusticus) behavior and physiology.

The Science of the total environment·2026
See all related articles

Related Experiment Video

Updated: Feb 23, 2026

Setup of Capillary Electrophoresis-Inductively Coupled Plasma Mass Spectrometry CE-ICP-MS for Quantification of Iron Redox Species FeII, FeIII
04:48

Setup of Capillary Electrophoresis-Inductively Coupled Plasma Mass Spectrometry CE-ICP-MS for Quantification of Iron Redox Species FeII, FeIII

Published on: May 4, 2020

8.8K

Free indium concentration determined with AGNES.

Marjan H Tehrani1, Encarna Companys1, Angela Dago1

  • 1Departament de Química, Universitat de Lleida, and AGROTECNIO, Rovira Roure 191, 25198 Lleida, Catalonia, Spain.

The Science of the Total Environment
|August 30, 2017
PubMed
Summary
This summary is machine-generated.

Accurate measurement of free indium (In) in water is crucial for environmental risk assessment. This study utilized electroanalysis to quantify free In, revealing limitations in current stability constant databases for In-ligand complexes.

Keywords:
BioavailabilityComplexationFree metal ionIn(III)SpeciationTechnology critical element

More Related Videos

TD-DFT Guided Advanced E-Eye Sensing Technique for On-site Quantification of Fe, Cr, F, and As in the Environmental, Biological, and Food Samples
09:51

TD-DFT Guided Advanced E-Eye Sensing Technique for On-site Quantification of Fe, Cr, F, and As in the Environmental, Biological, and Food Samples

Published on: September 19, 2025

529
Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.
08:21

Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.

Published on: September 1, 2017

16.3K

Related Experiment Videos

Last Updated: Feb 23, 2026

Setup of Capillary Electrophoresis-Inductively Coupled Plasma Mass Spectrometry CE-ICP-MS for Quantification of Iron Redox Species FeII, FeIII
04:48

Setup of Capillary Electrophoresis-Inductively Coupled Plasma Mass Spectrometry CE-ICP-MS for Quantification of Iron Redox Species FeII, FeIII

Published on: May 4, 2020

8.8K
TD-DFT Guided Advanced E-Eye Sensing Technique for On-site Quantification of Fe, Cr, F, and As in the Environmental, Biological, and Food Samples
09:51

TD-DFT Guided Advanced E-Eye Sensing Technique for On-site Quantification of Fe, Cr, F, and As in the Environmental, Biological, and Food Samples

Published on: September 19, 2025

529
Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.
08:21

Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.

Published on: September 1, 2017

16.3K

Area of Science:

  • Environmental Chemistry
  • Analytical Chemistry
  • Ecotoxicology

Background:

  • Indium (In) is prevalent in electronics, leading to environmental release.
  • Understanding indium speciation in water is vital for assessing ecotoxicity and environmental fate.
  • Free indium concentrations are often low due to hydrolysis, precipitation, and complexation.

Purpose of the Study:

  • To measure free indium concentration in aqueous solutions at pH 3.
  • To evaluate the accuracy of stability constants for indium-ligand complexes (NTA, oxalate).
  • To assess the suitability of the AGNES technique for determining free indium.

Main Methods:

  • Adaptation of the electroanalytical technique AGNES (Absence of Gradients and Nernstian Equilibrium Stripping).
  • Measurement of free indium concentrations in solutions containing indium, NTA, and oxalate at pH 3.
  • Comparison of experimental speciation data with database stability constants.

Main Results:

  • The AGNES technique was successfully adapted to measure free indium concentrations.
  • Experimental data suggest that some stability constants in the NIST46.6 database for In-NTA and In-oxalate complexes are inadequate.
  • Recent literature values for stability constants provided better agreement with experimental findings.
  • Highly labile In-oxalate complexes enabled the measurement of sub-nanomolar free indium concentrations rapidly.

Conclusions:

  • The adapted AGNES technique is effective for measuring environmentally relevant free indium concentrations.
  • Existing databases may underestimate the mobility and bioavailability of indium due to inaccurate stability constants.
  • Accurate speciation data are essential for reliable environmental risk assessment of indium.