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Separate determination of arsenite and arsenate in groundwater samples by simple analytical methods
| Title: | Separate determination of arsenite and arsenate in groundwater samples by simple analytical methods |
| Authors: | Matsunaga, Koji Browse this author | | Nakaya, Yuki Browse this author | | Satoh, Hisashi Browse this author →KAKEN DB |
| Keywords: | arsenate | | arsenic species analysis | | arsenite | | groundwater | | simple analytical method |
| Issue Date: | 1-Oct-2022 |
| Publisher: | IWA Publishing |
| Journal Title: | Water Supply |
| Volume: | 22 |
| Issue: | 10 |
| Start Page: | 7635 |
| End Page: | 7642 |
| Publisher DOI: | 10.2166/ws.2022.331 |
| Abstract: | We investigated the interaction of As(III) with As(III)-binding DNA aptamers (Ars-3). The binding of Ars-3 to As(III) was investigated using an Ars-3 sequence and a few control DNA sequences. As a result, we conclude that Ars-3 cannot bind As(III) and As(III) can adsorb onto gold nanoparticles with selectivity. However, the As(III) concentration could be determined by a simple As(III) analysis method using Ars-3, and we measured the As(III) and As(V) concentrations separately in As(III)/As(V) mixed samples in ultrapure water and groundwater using a simple analytical method for As(III) and As(V), respectively. As(III) in the sample was measured by a simple As(III) analytical method using DNA aptamers and gold nanoparticles, and As(V) in the sample was measured by a simple As(V) analysis method using cerium oxide nanoparticles and fluorescence-labeled DNA. We can measure As(III) and As(V) concentrations in ultrapure water and groundwater in the simple analytical method for As(III) and As(V), separately. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/87398 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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