ID | 63702 |
フルテキストURL | |
著者 |
MUHAMMED, Abdellah
Center for Environmental Science, College of Natural and Computational Sciences, Addis Ababa University
HUSSEN, Ahmed
Center for Environmental Science, College of Natural and Computational Sciences, Addis Ababa University
Kaneta, Takashi
Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University
ORCID
Kaken ID
publons
researchmap
|
抄録 | The present study was focused on improving sensitivity to trace levels of Cu(II) by subjecting microfluidic paper based analytical devices (μ PADs) to a preconcentration process via coprecipitation using aluminum hydroxide. The experimental conditions were optimized for the pH of the coprecipitation, centrifugation, and amounts of reagents that were deposited onto µ PADs for Cu(II) assay. The resultant limit of detection reached as low as 0.003 mg L 1 with a linear range of 0.01 2.00 mg L 1 . The relative standard deviations for intra and inter day precision were 3.2 and 4.6%, respectively (n = 9). Spiked water samples were analyzed using the μ PADs after coprecipitation preconcentration. The results were verified by comparing them with thos e of inductively coupled plasma optical emission spectrometry (ICP OES). Recoveries ranged from 97.1 104% and from 98.7 105% using the present method and ICP OES, respectively. These results suggest that the simple, highly sensitive, and inexpensive propos ed method would be helpful for analyzing trace levels of Cu(II) in water samples in poorly equipped laboratories.
|
キーワード | Microfluidic paper based analytical device
Coprecipitation
Preconcentration
Aluminum hydroxide
Copperion
bathocuproine
|
発行日 | 2021
|
出版物タイトル |
Analytical Sciences
|
出版者 | The Japan Society for Analytical Chemistry
|
ISSN | 0910-6340
|
資料タイプ |
学術雑誌論文
|
言語 |
英語
|
OAI-PMH Set |
岡山大学
|
著作権者 | © 2021 by The Japan Society for Analytical Chemistry
|
論文のバージョン | publisher
|
PubMed ID | |
DOI | |
関連URL | isVersionOf https://doi.org/10.2116/analsci.21p215
|