Dimercaptosuccinic Acid Functionalized Polystyrene Column for Trace Concentration Determination of Heavy Metal Ions: Experimental and Theoretical Calculation Studies
Metal ion studies in wastewater are required on a regular basis for environmental monitoring and assessment. Less metal ion concentrations and the interference from complex sample matrices remains challenging for instrumental quantification. Herein, we proposed a fix-bed solid phase extraction metho...
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2021
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oai:doaj.org-article:5c56d95109b844dda7d33b323e45c7cc2021-11-11T19:55:58ZDimercaptosuccinic Acid Functionalized Polystyrene Column for Trace Concentration Determination of Heavy Metal Ions: Experimental and Theoretical Calculation Studies10.3390/w132130562073-4441https://doaj.org/article/5c56d95109b844dda7d33b323e45c7cc2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/21/3056https://doaj.org/toc/2073-4441Metal ion studies in wastewater are required on a regular basis for environmental monitoring and assessment. Less metal ion concentrations and the interference from complex sample matrices remains challenging for instrumental quantification. Herein, we proposed a fix-bed solid phase extraction method, consisting of a newly prepared dimercaptosuccinic acid functionalized polystyrene beads. The ligand forms stable complex with Hg(II), Pb(II), and Cd(II), evident by experimental as well as density functional theory. The metal-ligand stabilization energy calculations, suggested the higher selectivity of polystyrene dimercaptosuccinic acid (PSDMSA) toward Pb(II) compared to Cd(II) and Hg(II). The prepared adsorbent was utilized to enrich Hg(II), Pb(II), and Cd(II) ions from environmental samples. Column parameters were studied in detail and optimized accordingly. The preconcentration factor for Hg(II), Pb(II), and Cd(II) were found to be 900, with the preconcentration limit of 0.74 µg L<sup>−1</sup>. The detection limit for Pb(II), Cd(II), and Hg(II) ions was found to be 1.3 ± 0.2, 1.5 ± 0.3, and 1.8 ± 0.3 ng L<sup>−1</sup>, respectively. The method accuracy was tested against systematic and continuous errors by standard addition method (<5% RSD). Real samples was successfully analyzed following the proposed method.Uzma HaseenSyed Ghazanfar AliKhalid UmarAbuzer AliHilal AhmadHaris Manzoor KhanMDPI AGarticletoxicityextractiontrace metal ionsspectroscopydensity functional theoryHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3056, p 3056 (2021) |
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toxicity extraction trace metal ions spectroscopy density functional theory Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
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toxicity extraction trace metal ions spectroscopy density functional theory Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Uzma Haseen Syed Ghazanfar Ali Khalid Umar Abuzer Ali Hilal Ahmad Haris Manzoor Khan Dimercaptosuccinic Acid Functionalized Polystyrene Column for Trace Concentration Determination of Heavy Metal Ions: Experimental and Theoretical Calculation Studies |
description |
Metal ion studies in wastewater are required on a regular basis for environmental monitoring and assessment. Less metal ion concentrations and the interference from complex sample matrices remains challenging for instrumental quantification. Herein, we proposed a fix-bed solid phase extraction method, consisting of a newly prepared dimercaptosuccinic acid functionalized polystyrene beads. The ligand forms stable complex with Hg(II), Pb(II), and Cd(II), evident by experimental as well as density functional theory. The metal-ligand stabilization energy calculations, suggested the higher selectivity of polystyrene dimercaptosuccinic acid (PSDMSA) toward Pb(II) compared to Cd(II) and Hg(II). The prepared adsorbent was utilized to enrich Hg(II), Pb(II), and Cd(II) ions from environmental samples. Column parameters were studied in detail and optimized accordingly. The preconcentration factor for Hg(II), Pb(II), and Cd(II) were found to be 900, with the preconcentration limit of 0.74 µg L<sup>−1</sup>. The detection limit for Pb(II), Cd(II), and Hg(II) ions was found to be 1.3 ± 0.2, 1.5 ± 0.3, and 1.8 ± 0.3 ng L<sup>−1</sup>, respectively. The method accuracy was tested against systematic and continuous errors by standard addition method (<5% RSD). Real samples was successfully analyzed following the proposed method. |
format |
article |
author |
Uzma Haseen Syed Ghazanfar Ali Khalid Umar Abuzer Ali Hilal Ahmad Haris Manzoor Khan |
author_facet |
Uzma Haseen Syed Ghazanfar Ali Khalid Umar Abuzer Ali Hilal Ahmad Haris Manzoor Khan |
author_sort |
Uzma Haseen |
title |
Dimercaptosuccinic Acid Functionalized Polystyrene Column for Trace Concentration Determination of Heavy Metal Ions: Experimental and Theoretical Calculation Studies |
title_short |
Dimercaptosuccinic Acid Functionalized Polystyrene Column for Trace Concentration Determination of Heavy Metal Ions: Experimental and Theoretical Calculation Studies |
title_full |
Dimercaptosuccinic Acid Functionalized Polystyrene Column for Trace Concentration Determination of Heavy Metal Ions: Experimental and Theoretical Calculation Studies |
title_fullStr |
Dimercaptosuccinic Acid Functionalized Polystyrene Column for Trace Concentration Determination of Heavy Metal Ions: Experimental and Theoretical Calculation Studies |
title_full_unstemmed |
Dimercaptosuccinic Acid Functionalized Polystyrene Column for Trace Concentration Determination of Heavy Metal Ions: Experimental and Theoretical Calculation Studies |
title_sort |
dimercaptosuccinic acid functionalized polystyrene column for trace concentration determination of heavy metal ions: experimental and theoretical calculation studies |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/5c56d95109b844dda7d33b323e45c7cc |
work_keys_str_mv |
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