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Open AccessArticle

Lead Complexation by Humic Acids and Their Analogs: A Voltammetric Study

Department of Chemistry, University of Nevada, Las Vegas, NV 89154, USA
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Environments 2020, 7(11), 94; https://doi.org/10.3390/environments7110094
Received: 28 September 2020 / Revised: 15 October 2020 / Accepted: 23 October 2020 / Published: 26 October 2020
(This article belongs to the Special Issue Feature Papers in Environments in 2020)
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. View Full-Text
Keywords: lead; differential pulse polarography; organic matter; humic substance lead; differential pulse polarography; organic matter; humic substance
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MDPI and ACS Style

Steinberg, S.; Hodge, V. Lead Complexation by Humic Acids and Their Analogs: A Voltammetric Study. Environments 2020, 7, 94. https://doi.org/10.3390/environments7110094

AMA Style

Steinberg S, Hodge V. Lead Complexation by Humic Acids and Their Analogs: A Voltammetric Study. Environments. 2020; 7(11):94. https://doi.org/10.3390/environments7110094

Chicago/Turabian Style

Steinberg, Spencer; Hodge, Vernon. 2020. "Lead Complexation by Humic Acids and Their Analogs: A Voltammetric Study" Environments 7, no. 11: 94. https://doi.org/10.3390/environments7110094

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