Lead Complexation by Humic Acids and Their Analogs: A Voltammetric Study
Differential pulse polarography (DPP) was used to assess the interaction of Pb<sup>2+</sup> with various humic acid analogs and several humic acids. DPP analysis demonstrated that the reduction peak maximum (E<sub>p</sub>) for Pb<sup>2+</sup> shifted to more negat...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Environments |
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| Online Access: | https://www.mdpi.com/2076-3298/7/11/94 |
| _version_ | 1797549780751089664 |
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| author | Spencer Steinberg Vernon Hodge |
| author_facet | Spencer Steinberg Vernon Hodge |
| author_sort | Spencer Steinberg |
| collection | DOAJ |
| description | Differential pulse polarography (DPP) was used to assess the interaction of Pb<sup>2+</sup> with various humic acid analogs and several humic acids. DPP analysis demonstrated that the reduction peak maximum (E<sub>p</sub>) for Pb<sup>2+</sup> shifted to more negative values in the presence of humic acids and humic acid analogs. The observed E<sub>p</sub> for Pb<sup>2+</sup> in the presence of humic acids and humic acid analogs is influenced by ligand concentration, solution pH and Pb<sup>2+</sup> concentration. Shifts in the E<sub>p</sub> for Pb<sup>2+</sup> are related to the reduction potential and can be rationalized using the Lingane equation. |
| first_indexed | 2024-03-10T15:20:17Z |
| format | Article |
| id | doaj.art-f95ba2f71c4d448f802b1b4d08f21b5e |
| institution | Directory Open Access Journal |
| issn | 2076-3298 |
| language | English |
| last_indexed | 2024-03-10T15:20:17Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Environments |
| spelling | doaj.art-f95ba2f71c4d448f802b1b4d08f21b5e2023-11-20T18:38:01ZengMDPI AGEnvironments2076-32982020-10-017119410.3390/environments7110094Lead Complexation by Humic Acids and Their Analogs: A Voltammetric StudySpencer Steinberg0Vernon Hodge1Department of Chemistry, University of Nevada, Las Vegas, NV 89154, USADepartment of Chemistry, University of Nevada, Las Vegas, NV 89154, USADifferential pulse polarography (DPP) was used to assess the interaction of Pb<sup>2+</sup> with various humic acid analogs and several humic acids. DPP analysis demonstrated that the reduction peak maximum (E<sub>p</sub>) for Pb<sup>2+</sup> shifted to more negative values in the presence of humic acids and humic acid analogs. The observed E<sub>p</sub> for Pb<sup>2+</sup> in the presence of humic acids and humic acid analogs is influenced by ligand concentration, solution pH and Pb<sup>2+</sup> concentration. Shifts in the E<sub>p</sub> for Pb<sup>2+</sup> are related to the reduction potential and can be rationalized using the Lingane equation.https://www.mdpi.com/2076-3298/7/11/94leaddifferential pulse polarographyorganic matterhumic substance |
| spellingShingle | Spencer Steinberg Vernon Hodge Lead Complexation by Humic Acids and Their Analogs: A Voltammetric Study Environments lead differential pulse polarography organic matter humic substance |
| title | Lead Complexation by Humic Acids and Their Analogs: A Voltammetric Study |
| title_full | Lead Complexation by Humic Acids and Their Analogs: A Voltammetric Study |
| title_fullStr | Lead Complexation by Humic Acids and Their Analogs: A Voltammetric Study |
| title_full_unstemmed | Lead Complexation by Humic Acids and Their Analogs: A Voltammetric Study |
| title_short | Lead Complexation by Humic Acids and Their Analogs: A Voltammetric Study |
| title_sort | lead complexation by humic acids and their analogs a voltammetric study |
| topic | lead differential pulse polarography organic matter humic substance |
| url | https://www.mdpi.com/2076-3298/7/11/94 |
| work_keys_str_mv | AT spencersteinberg leadcomplexationbyhumicacidsandtheiranalogsavoltammetricstudy AT vernonhodge leadcomplexationbyhumicacidsandtheiranalogsavoltammetricstudy |