Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode
Arsenic poisoning in the environment can cause severe effects on human health, hence detection is crucial. An electrochemical-based portable assessment of arsenic contamination is the ability to identify arsenite (As(III)). To achieve this, a low-cost electroanalytical assay for the detection of As(...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Multidisciplinary Digital Publishing Institute
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/88770/ http://psasir.upm.edu.my/id/eprint/88770/1/SILICA.pdf |
| _version_ | 1848860692260585472 |
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| author | Ismail, Suhainie Yusof, Nor Azah Abdullah, Jaafar Abd Rahman, Siti Fatimah |
| author_facet | Ismail, Suhainie Yusof, Nor Azah Abdullah, Jaafar Abd Rahman, Siti Fatimah |
| author_sort | Ismail, Suhainie |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Arsenic poisoning in the environment can cause severe effects on human health, hence detection is crucial. An electrochemical-based portable assessment of arsenic contamination is the ability to identify arsenite (As(III)). To achieve this, a low-cost electroanalytical assay for the detection of As(III) utilizing a silica nanoparticles (SiNPs)-modified screen-printed carbon electrode (SPCE) was developed. The morphological and elemental analysis of functionalized SiNPs and a SiNPs/SPCE-modified sensor was studied using field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), and Fourier transform infrared spectroscopy (FTIR). The electrochemical responses towards arsenic detection were measured using the cyclic voltammetry (CV) and linear sweep anodic stripping voltammetry (LSASV) techniques. Under optimized conditions, the anodic peak current was proportional to the As(III) concentration over a wide linear range of 5 to 30 µg/L, with a detection limit of 6.2 µg/L. The suggested approach was effectively valid for the testing of As(III) found within the real water samples with good reproducibility and stability. |
| first_indexed | 2025-11-15T12:49:16Z |
| format | Article |
| id | upm-88770 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:49:16Z |
| publishDate | 2020 |
| publisher | Multidisciplinary Digital Publishing Institute |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-887702021-10-06T15:34:32Z http://psasir.upm.edu.my/id/eprint/88770/ Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode Ismail, Suhainie Yusof, Nor Azah Abdullah, Jaafar Abd Rahman, Siti Fatimah Arsenic poisoning in the environment can cause severe effects on human health, hence detection is crucial. An electrochemical-based portable assessment of arsenic contamination is the ability to identify arsenite (As(III)). To achieve this, a low-cost electroanalytical assay for the detection of As(III) utilizing a silica nanoparticles (SiNPs)-modified screen-printed carbon electrode (SPCE) was developed. The morphological and elemental analysis of functionalized SiNPs and a SiNPs/SPCE-modified sensor was studied using field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), and Fourier transform infrared spectroscopy (FTIR). The electrochemical responses towards arsenic detection were measured using the cyclic voltammetry (CV) and linear sweep anodic stripping voltammetry (LSASV) techniques. Under optimized conditions, the anodic peak current was proportional to the As(III) concentration over a wide linear range of 5 to 30 µg/L, with a detection limit of 6.2 µg/L. The suggested approach was effectively valid for the testing of As(III) found within the real water samples with good reproducibility and stability. Multidisciplinary Digital Publishing Institute 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/88770/1/SILICA.pdf Ismail, Suhainie and Yusof, Nor Azah and Abdullah, Jaafar and Abd Rahman, Siti Fatimah (2020) Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode. Materials, 13 (14). art. no. 3168. pp. 1-16. ISSN 1996-1944 https://www.mdpi.com/1996-1944/13/14/3168 10.3390/ma13143168 |
| spellingShingle | Ismail, Suhainie Yusof, Nor Azah Abdullah, Jaafar Abd Rahman, Siti Fatimah Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode |
| title | Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode |
| title_full | Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode |
| title_fullStr | Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode |
| title_full_unstemmed | Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode |
| title_short | Electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode |
| title_sort | electrochemical detection of arsenite using a silica nanoparticles- modified screen-printed carbon electrode |
| url | http://psasir.upm.edu.my/id/eprint/88770/ http://psasir.upm.edu.my/id/eprint/88770/ http://psasir.upm.edu.my/id/eprint/88770/ http://psasir.upm.edu.my/id/eprint/88770/1/SILICA.pdf |