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- Publisher Website: 10.1016/j.jelechem.2020.114657
- Scopus: eid_2-s2.0-85091256672
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Article: High index facets-Ag nanoflower enabled efficient electrochemical detection of lead in blood serum and cosmetics
Title | High index facets-Ag nanoflower enabled efficient electrochemical detection of lead in blood serum and cosmetics |
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Authors | |
Keywords | Silver nanoflower High-index facet Electrochemical detection of lead ion Anodic stripping voltammetry Selective and real-time analysis |
Issue Date | 2020 |
Publisher | Elsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/jelechem |
Citation | Journal of Electroanalytical Chemistry, 2020, v. 878, p. article no. 114657 How to Cite? |
Abstract | Owing to its importance in environmental pollution and human toxicity, the development of a simple and selective sensor for heavy metal ions is a continued research interest in cross-disciplinary areas of analytical chemistry. The colorimetric analysis based conventional complexation assay of Pb2+ is a cumbersome procedure for practical applications. Herein, we report a novel electrochemical sensor approach based on a high index facets (HIF)‑silver nanoflower modified glassy carbon electrode (AgNF@GCE) for anodic stripping voltammetric detection of lead ion in a pH 4.5 acetate buffer solution. Physicochemical techniques such as XPS, FESEM, and electrochemical studies with Fe(CN)63 were adopted for the surface characterization of the AgNF@GCE. Unlike the conventional Ag-nanoparticles, this new system provides a highly crystalline and large surface area with HIF's {422} and {111} for sensitive and selective electrochemical analysis of Pb2+ ion. Under an optimal experimental condition, AgNF@GCE showed a linear calibration plot in the range of 10–700 ppb of Pb2+ ion with a detection limit 0.74 ppb. Eight repetitive measurements of 50 ppb Pb2+ yielded a relative standard deviation value of 2.8%. The sensor showed tolerable interference with other metal ions such as Cu2+, Fe2+, Mg2+, Ni2+, K+, and Na+. As practical applicability, selective detection of lead concentration in blood-serum and cosmetics were successfully analyzed with appreciable recovery values. |
Persistent Identifier | http://hdl.handle.net/10722/288108 |
ISSN | 2023 Impact Factor: 4.1 2023 SCImago Journal Rankings: 0.755 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Puchakayala, S | - |
dc.contributor.author | CHEN, J | - |
dc.contributor.author | Kumar, AS | - |
dc.contributor.author | Feng, SP | - |
dc.date.accessioned | 2020-10-05T12:07:58Z | - |
dc.date.available | 2020-10-05T12:07:58Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Journal of Electroanalytical Chemistry, 2020, v. 878, p. article no. 114657 | - |
dc.identifier.issn | 1572-6657 | - |
dc.identifier.uri | http://hdl.handle.net/10722/288108 | - |
dc.description.abstract | Owing to its importance in environmental pollution and human toxicity, the development of a simple and selective sensor for heavy metal ions is a continued research interest in cross-disciplinary areas of analytical chemistry. The colorimetric analysis based conventional complexation assay of Pb2+ is a cumbersome procedure for practical applications. Herein, we report a novel electrochemical sensor approach based on a high index facets (HIF)‑silver nanoflower modified glassy carbon electrode (AgNF@GCE) for anodic stripping voltammetric detection of lead ion in a pH 4.5 acetate buffer solution. Physicochemical techniques such as XPS, FESEM, and electrochemical studies with Fe(CN)63 were adopted for the surface characterization of the AgNF@GCE. Unlike the conventional Ag-nanoparticles, this new system provides a highly crystalline and large surface area with HIF's {422} and {111} for sensitive and selective electrochemical analysis of Pb2+ ion. Under an optimal experimental condition, AgNF@GCE showed a linear calibration plot in the range of 10–700 ppb of Pb2+ ion with a detection limit 0.74 ppb. Eight repetitive measurements of 50 ppb Pb2+ yielded a relative standard deviation value of 2.8%. The sensor showed tolerable interference with other metal ions such as Cu2+, Fe2+, Mg2+, Ni2+, K+, and Na+. As practical applicability, selective detection of lead concentration in blood-serum and cosmetics were successfully analyzed with appreciable recovery values. | - |
dc.language | eng | - |
dc.publisher | Elsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/jelechem | - |
dc.relation.ispartof | Journal of Electroanalytical Chemistry | - |
dc.subject | Silver nanoflower | - |
dc.subject | High-index facet | - |
dc.subject | Electrochemical detection of lead ion | - |
dc.subject | Anodic stripping voltammetry | - |
dc.subject | Selective and real-time analysis | - |
dc.title | High index facets-Ag nanoflower enabled efficient electrochemical detection of lead in blood serum and cosmetics | - |
dc.type | Article | - |
dc.identifier.email | Feng, SP: hpfeng@hku.hk | - |
dc.identifier.authority | Feng, SP=rp01533 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.jelechem.2020.114657 | - |
dc.identifier.scopus | eid_2-s2.0-85091256672 | - |
dc.identifier.hkuros | 315435 | - |
dc.identifier.volume | 878 | - |
dc.identifier.spage | article no. 114657 | - |
dc.identifier.epage | article no. 114657 | - |
dc.identifier.isi | WOS:000593969400007 | - |
dc.publisher.place | Switzerland | - |
dc.identifier.issnl | 1572-6657 | - |