A Rapid Enrichment Technique for the Ultratrace Determination of Nickel in Water Samples Using a Nanofiber-composite Membrane Filter
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- MIZUGUCHI Hitoshi
- Graduate School of Science and Technology, Tokushima University
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- ISHIDA Ryota
- Graduate School of Science and Technology, Tokushima University
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- KOUNO Yasushi
- Azumi Filter Paper Co., Ltd.
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- TACHIBANA Tadahiko
- Azumi Filter Paper Co., Ltd.
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- HONDA Tomomi
- Department of Mechanical Engineering, Graduate School of Engineering, University of Fukui
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- KIJIMA Tatsuro
- Graduate School of Science and Engineering, Yamagata University
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- YAMAMOTO Yuhei
- Graduate School of Science and Technology, Tokushima University
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- TAKAYANAGI Toshio
- Graduate School of Science and Technology, Tokushima University
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Abstract
<p>A new method for the rapid enrichment and highly sensitive determination of nickel ion has been developed by using a nanofiber-composite membrane filter, which was fabricated by stacking a nanofibrous material made of nylon 6 over a water-permeable membrane filter. The noncharged nickel-α-furil dioxime complex was adsorbed on a nanofibrous layer of the membrane filter under significantly higher flow rates than those used for conventional solid-phase extraction techniques. Highly sensitive determinations with detection limits at sub-parts per billion levels were achieved by enrichment from 50 mL of the complex solution, and the enrichment was completed within 3 min. The color that was developed on the membrane filter was successfully subjected to visual colorimetric analysis and quantitative determination by solid-phase spectrophotometry. In addition, colorimetric determination was feasible with a handheld spectrometer after elution of the colored agent with 50 μL of acetone. This combination of rapid enrichment and spectrometric measurement in a small-volume sample provides a useful analytical method suitable for on-site analysis, which requires neither expensive instruments nor high laboratory skills.</p>
Journal
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- Analytical Sciences
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Analytical Sciences 34 (8), 907-912, 2018-08-10
The Japan Society for Analytical Chemistry
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Keywords
Details 詳細情報について
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- CRID
- 1390564238005936896
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- NII Article ID
- 130007432351
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- NII Book ID
- AA10500785
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- ISSN
- 13482246
- 09106340
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- NDL BIB ID
- 029154012
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- PubMed
- 30101885
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed