Related Experiment Video
Updated: Jun 28, 2026

Quantification of Metal Leaching in Immobilized Metal Affinity Chromatography
Published on: January 17, 2020
Extraction of metal ions from chloride solution with N,N-dioctylacetamide
1Ames Laboratory-DOE and Department of Chemistry, Iowa State University, Ames, Iowa 50011, U.S.A.
Abstract:
N,N-Di-n-octylacetamide (DOAA) was prepared and shown to be an effective extractant for a number of metal ions from aqueous hydrochloric acid solution. Distribution ratios of 35 metal ions were measured for 1M DOAA in chloroform and hydrochloric acid solutions ranging from 0.10 to 9.0M. Extraction of uranium(VI) from solutions of hydrochloric acid and of nitric acid was compared. The effects of different diluents and varying concentrations of DOAA were studied in an attempt to elucidate the extraction mechanisms involved.
Related Concept Videos
Extraction: Advanced Methods
Qualitative Analysis
For instance, group IV...
Masking and Demasking Agents
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on the metal...
Formation of Complex Ions
Electrodeposition
Electrodeposition can...
EDTA: Direct, Back-, and Displacement Titration
Direct titration involves buffering the metal ion solution to the desired pH and directly titrating with standard EDTA until the endpoint. The optimum pH ensures a large conditional formation constant of metal−EDTA and visibility of the free indicator color in the solution. In addition, auxiliary complexing reagents are used to prevent the precipitation of metal hydroxides and...

