1
|
Jakavula S, Biata NR, Dimpe KM, Pakade VE, Nomngongo PN. Magnetic Ion Imprinted Polymers (MIIPs) for Selective Extraction and Preconcentration of Sb(III) from Environmental Matrices. Polymers (Basel) 2021; 14:21. [PMID: 35012044 PMCID: PMC8747241 DOI: 10.3390/polym14010021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 12/15/2022] Open
Abstract
Antimony(III) is a rare element whose chemical and toxicological properties bear a resemblance to those of arsenic. As a result, the presence of Sb(III) in water might have adverse effects on human health and aquatic life. However, Sb(III) exists at very ultra-trace levels which may be difficult for direct quantification. Therefore, there is a need to develop efficient and reliable selective extraction and preconcentration of Sb(III) in water systems. Herein, a selective extraction and preconcentration of trace Sb(III) from environmental samples was achieved using ultrasound assisted magnetic solid-phase extraction (UA-MSPE) based on magnetic Sb(III) ion imprinted polymer-Fe3O4@SiO2@CNFs nanocomposite as an adsorbent. The amount of antimony in samples was determined using inductively coupled plasma optical emission spectrometry (ICP-OES). The UA-MSPE conditions were investigated using fractional factorial design and response surface methodology based on central composite design. The Sb(III)-IIP sorbent displayed excellent selectivity towards Sb(III) as compared to NIIP adsorbent. Under optimised conditions, the enrichment factor, limit of detection (LOD) and limit of quantification (LOQ) of UA-MSPE/ICP-OES for Sb(III) were 71.3, 0.13 µg L-1 and 0.44 µg L-1, respectively. The intra-day and inter-day precision expressed as relative standard deviations (%RSDs, n = 10 and n = 5) were 2.4 and 4.7, respectively. The proposed analytical method was applied in the determination of trace Sb(III) in environmental samples. Furthermore, the accuracy of the method was evaluated using spiked recovery experiments and the percentage recoveries ranged from 95-98.3%.
Collapse
Affiliation(s)
- Silindokuhle Jakavula
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, Doornfontein 2028, South Africa; (S.J.); (N.R.B.); (K.M.D.)
- Department of Science and Innovation-National Research Foundation South African Research Chair Initiative (DSI-NRF SARChI), Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa
| | - Nkositetile Raphael Biata
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, Doornfontein 2028, South Africa; (S.J.); (N.R.B.); (K.M.D.)
- Department of Science and Innovation-National Research Foundation South African Research Chair Initiative (DSI-NRF SARChI), Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa
| | - Kgogobi M. Dimpe
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, Doornfontein 2028, South Africa; (S.J.); (N.R.B.); (K.M.D.)
| | - Vusumzi Emmanuel Pakade
- Department of Chemistry, Vaal University of Technology, Private Bag X 021, Vanderbijlpark 1911, South Africa;
| | - Philiswa Nosizo Nomngongo
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, Doornfontein 2028, South Africa; (S.J.); (N.R.B.); (K.M.D.)
- Department of Science and Innovation-National Research Foundation South African Research Chair Initiative (DSI-NRF SARChI), Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa
| |
Collapse
|
2
|
Jakavula S, Biata NR, Dimpe KM, Pakade VE, Nomngongo PN. Multi-ion imprinted polymers (MIIPs) for simultaneous extraction and preconcentration of Sb(III), Te(IV), Pb(II) and Cd(II) ions from drinking water sources. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:126175. [PMID: 34492950 DOI: 10.1016/j.jhazmat.2021.126175] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 04/24/2021] [Accepted: 05/18/2021] [Indexed: 06/13/2023]
Abstract
Simultaneous extraction and preconcentration of several potentially toxic metal ions have received great attention because of their toxicological effects on aquatic life and human beings. Multi-ion imprinted polymers (MIIP) have proved to be promising adsorbents with excellent specific recognition performance than single-ion imprinted polymer. Therefore, in this study, the MIIP strategy was employed for simultaneous extraction and enrichment of Sb(III), Cd(II), Pb(II) and Te(IV) ions from drinking water sources. MIIPs was used as a sorbent material in ultrasound-assisted dispersive solid phase extraction combined with inductively coupled plasma optical emission spectrometry (UA-DSPE/ICP-OES). The experimental parameters that affect the extraction efficiency and recovery of Sb(III), Cd(II), Pb(II) and Te(IV) were investigated using response surface methodology. Under optimum conditions, the enhancement factors, linear range, limit of detection (LOD) and limit of quantification (LOQ) were 37.7-51.1, 0.04-100 µg L-1, 0.011-0.28 µg L-1, 0.037-093 µg L-1, respectively. The intra-day (n = 10) and inter-day (n = 5) precision expressed as relative standard deviations (%RSDs,) were 3% and 5%, respectively. The proposed UA-DSPE/ICP-OES method was applied for preconcentration and determination of the trace metal ions in environmental samples. Furthermore, the accuracy of the method was evaluated using spiked recovery experiments and the percentage recoveries ranged from 95% to 99.3%.
Collapse
Affiliation(s)
- Silindokuhle Jakavula
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa; Department of Science and Innovation (DSI)/National Research Foundation (NRF) South African Research Chair Initiative (SARChI): Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa
| | - N Raphael Biata
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa; Department of Science and Innovation (DSI)/National Research Foundation (NRF) South African Research Chair Initiative (SARChI): Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa; DSI/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein 2028, South Africa
| | - K Mogolodi Dimpe
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa; DSI/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein 2028, South Africa
| | - Vusumzi E Pakade
- Department of Chemistry, Vaal University of Technology, Private Bag X 021, Vanderbijlpark, South Africa
| | - Philiswa N Nomngongo
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa; Department of Science and Innovation (DSI)/National Research Foundation (NRF) South African Research Chair Initiative (SARChI): Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa; DSI/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein 2028, South Africa.
| |
Collapse
|
3
|
Lin B, Xu W, Fang L, Wei Y, Xiong C. Design, synthesis, and evaluation of amino-terminated oxidization modified peanut shell as adsorbent of microcolumn for Sudan-I detection and efficient recovery. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2018.1538241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Baohong Lin
- Department of Applied Chemistry, Zhejiang Gongshang Univresity, Hangzhou, PR China
| | - Wentian Xu
- Department of Applied Chemistry, Zhejiang Gongshang Univresity, Hangzhou, PR China
| | - Lei Fang
- Department of Infectious Disease and Global Health,Tufts University, North Grafton, MA, USA
| | - Yasong Wei
- Department of Applied Chemistry, Zhejiang Gongshang Univresity, Hangzhou, PR China
| | - Chunhua Xiong
- Department of Applied Chemistry, Zhejiang Gongshang Univresity, Hangzhou, PR China
| |
Collapse
|
4
|
You N, Liu TH, Fan HT, Shen H. An efficient mercapto-functionalized organic–inorganic hybrid sorbent for selective separation and preconcentration of antimony(iii) in water samples. RSC Adv 2018; 8:5106-5113. [PMID: 35542403 PMCID: PMC9078184 DOI: 10.1039/c7ra13074k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 01/22/2018] [Indexed: 01/11/2023] Open
Abstract
This work reported on the application of mercapto-functionalized silica-supported organic–inorganic hybrid sorbent as a solid phase extraction (SPE) extractant for effective separation and preconcentration of Sb(iii) species in real water samples. The influences of pH, sorbent amounts, flow rates and the concentration of eluent on the adsorption and desorption of Sb(iii) species had been evaluated. The recovery of Sb(iii) species at pH 5 with 100 mg mercapto-functionalized hybrid sorbent at the flow rate of 5.0 mL min−1 was greater than 95% without interference from all of metal ions tested. The trapped Sb(iii) species by extractant was then eluted with 5% HCl solution at the flow rate of 5.0 mL min−1. The proposed procedure permitted large enrichment factors of about 200 and higher for 10 μg L−1 of Sb(iii) species. The merits of analytical figures for the determination of Sb(iii) species were as follows: detection limit (3σ, n = 11), 2 ng L−1; precision, 1.6% (n = 11) for 10 μg L−1 of Sb(iii) species; the linear calibration curve presented in the concentration range of 1.0–200.0 μg L−1. The validity of the proposed procedure was checked by the analysis of standard reference materials. Excellent agreement between the analytical results and the certified values (t-test at 95% confidence level) was found. The mercapto-functionalized hybrid sorbent as a SPE extractant was applied to the determination of Sb(iii) species in various water samples with satisfactory results. This work reported on the application of mercapto-functionalized silica-supported organic–inorganic hybrid sorbent as a solid phase extraction (SPE) extractant for effective separation and preconcentration of Sb(iii) species in real water samples.![]()
Collapse
Affiliation(s)
- Nan You
- College of Chemistry
- Chemical Engineering and Environmental Engineering
- Liaoning University of Petroleum and Chemical Technology
- Fushun
- China
| | - Tian-Hong Liu
- College of Applied Chemistry
- Shenyang University of Chemical Technology
- Shenyang
- China
| | - Hong-Tao Fan
- College of Chemistry
- Chemical Engineering and Environmental Engineering
- Liaoning University of Petroleum and Chemical Technology
- Fushun
- China
| | - Hua Shen
- College of Applied Chemistry
- Shenyang University of Chemical Technology
- Shenyang
- China
| |
Collapse
|