Continuous-flow determination system for low concentrations of aluminum ions with a fluoride ion-selective electrode detector
Bibliographic Information
- Other Title
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- フッカ イオン デンキョク オ ケンシュツキ トスル テイノウド アルミニウム イオン ノ レンゾク フロー ブンセキ システム
- フッ化イオン電極を検出器とする低濃度アルミニウムイオンの連続フロー分析システム
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Description
type:Departmental Bulletin Paper
A continuous-flow system equipped with a fluoride ion-selective electrode (F-ISE) detector was constructed for the determination of low concentrations of aluminum ions. The buffer composed of a mixture of 0.11 mol dm-3 β-alanine (2-aminopropionic acid) and HCl containing 1.1x10-6 mol dm-3 fluoride was introduced into the sample line. The potential increase caused by the reaction between fluoride and aluminum was monitored by the F-ISE. A flow injection like signal is obtained by exchanging the sample and base fluoride solutions alternately. Thesensitivity defined as the difference in the peak heights of 10-7 and 10-6 mol dm-3 aluminum ions was about 25 mV. The detection limit is 1x10-7 mol dm-3. The precision of five independent measurements was 8-20% for 2-50x10-7 mol dm-3 aluminum standard solutions. The effect of fluoride and iron(III) ion in a sample was evaluated. The system was preliminarily applied to rain water analysis.
identifier:滋賀大学教育学部紀要, 3, 自然科学, 第50号, pp.1-8
Journal
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- 滋賀大学教育学部紀要, 3, 自然科学
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滋賀大学教育学部紀要, 3, 自然科学 50 1-8, 2000
滋賀大学教育学部
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Details 詳細情報について
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- CRID
- 1050564288395318912
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- NII Article ID
- 110000073207
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- NII Book ID
- AA11123267
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- ISSN
- 13429272
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- NDL BIB ID
- 5852668
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- Text Lang
- en
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- Article Type
- departmental bulletin paper
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- Data Source
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- IRDB
- NDL
- CiNii Articles