Document Type
Article
Publication Date
11-1-2020
Publication Title
Environments
Volume
7
Issue
11
First page number:
1
Last page number:
18
Abstract
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. Differential pulse polarography (DPP) was used to assess the interaction of Pb2+ with various humic acid analogs and several humic acids. DPP analysis demonstrated that the reduction peak maximum (Ep) for Pb2+ shifted to more negative values in the presence of humic acids and humic acid analogs. The observed Ep for Pb2+ in the presence of humic acids and humic acid analogs is influenced by ligand concentration, solution pH and Pb2+ concentration. Shifts in the Ep for Pb2+ are related to the reduction potential and can be rationalized using the Lingane equation.
Keywords
Differential pulse polarography; Humic substance; Lead; Organic matter
Disciplines
Environmental Chemistry
File Format
File Size
2.743 KB
Language
English
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Repository Citation
Steinberg, S.,
Hodge, V.
(2020).
Lead Complexation by Humic Acids and Their Analogs: A Voltammetric Study.
Environments, 7(11),
1-18.
http://dx.doi.org/10.3390/environments7110094