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DC Field | Value | Language |
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dc.contributor.author | Tribidasari, Ivandini A. | - |
dc.contributor.author | Wijaya, Lany | - |
dc.contributor.author | Gunlazuardi, Jarnuzi | - |
dc.contributor.author | Einaga, Yasuaki | - |
dc.date.accessioned | 2016-08-24T04:15:10Z | - |
dc.date.available | 2016-08-24T04:15:10Z | - |
dc.date.issued | 2012-04 | - |
dc.identifier.issn | 1693-6671 | - |
dc.identifier.other | 10.7454/mss.v16i1.1274/Makara J. Sci. 16/1 (2012) 9-14 | en_US |
dc.identifier.uri | http://paper.sci.ui.ac.id/jspui/handle/2808.28/180 | - |
dc.description.abstract | Modification of carbon, including boron-doped diamond (BDD) and glassy carbon (GC), using gold nanoparticle (AuNP) was developed by self-assembly technique. This technique is based on electrostatic interaction between citratecapped AuNP to amine terminal groups after surface modification of BDD and GC. The fabricated materials, AuNPBDD and AuNP-GC, were then utilized as electrodes for As3+ detection using anodic stripping voltammetry (ASV) technique. Anodic stripping voltammograms of both AuNP-BDD and AuNP-GC electrodes showed similar peak potentials of As° oxidation at ~0.21 V (vs. Ag/AgCl) in optimum conditions of -500 mV, 180 s, and 100 mV/s for deposition potential, deposition time, and scan rate, respectively. AuNP-BDD shows better performances in the case of wide linear concentration range (0-20 mM) and low limit of detection (0.39 μM or 4.64 ppb), whereas those of AuNPGC were linear in the concentration range of 0-10mM with a detection limit of 0.14 μM (13.12 ppb). Excellent reproducibility was shown with RSDs (n=20) of 2.93% and 4.54% at AuNP-BDD and AuNP-GC, respectively. However, decreasing of current responses in 6-concecutive days was found more at AuNP-BDD (~20.1%) than that at AuNP-GC (~2.8%). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | DRPM Universitas Indonesia | en_US |
dc.relation.ispartofseries | Volume 16;No. 1 | - |
dc.source | Makara Journal of Science 16/1 (2012) 9-14 | en_US |
dc.source.uri | http://journal.ui.ac.id/index.php/science/article/view/1274/1171 | en_US |
dc.subject | anodic stripping voltammetry | en_US |
dc.subject | arsenic | en_US |
dc.subject | boron-doped diamond | en_US |
dc.subject | glassy carbon | en_US |
dc.subject | gold nanoparticles | en_US |
dc.title | Modification of Gold Nanoparticles at Carbon Electrodes and the Applications for Arsenic (III) Detections | en_US |
dc.type | Article | en_US |
Appears in Collections: | Journal Collection |
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File | Description | Size | Format | |
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Ivandini.Makara.2012.pdf | 1,17 MB | Adobe PDF | View/Open Request a copy |
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