Adsorption of phosphate with activated carbon loaded with zirconium and its application to a simple in situ preconcentration method for phosphate in environmental water samples.
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- OKUMURA Minoru
- Interdisciplinary Faculty of Science and Engineering, Shimane University
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- FUJINAGA Kaoru
- Interdisciplinary Faculty of Science and Engineering, Shimane University
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- SEIKE Yasushi
- Interdisciplinary Faculty of Science and Engineering, Shimane University
Bibliographic Information
- Other Title
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- ジルコニウム担持活性炭を用いる環境水中リン酸イオンの吸着捕集とその簡便現場捕集法への適用
- ジルコニウム タンジ カッセイタン オ モチイル カンキョウ スイチュウ リンサン イオン ノ キュウチャクホシュウ ト ソノ カンベン ゲンバホシュウホウ エ ノ テキヨウ
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Abstract
An effective and selective adsorbent, activated carbon loaded with zirconium (Zr-C*), has been developed for the preconcentration of phosphate in environmental water samples. The Zr-C* was prepared by mixing a zirconyl nitrate solution with activated carbon. Phosphate is quantitatively adsorbed onto Zr-C* below pH 8 and quantitatively desorbed above pH 13.5. Such quantitative adsorption and desorption were instantaneously accomplished. These characteristics of Zr-C* enable us to separate and preconcentrate rapidly and selectively low levels of phosphate in environmental water samples by two rapid preconcetration methods. One is a flow method: a sample solution (pH 1.5) is passed through a Zr-C* bed formed on a membrane filter paper with the aid of suction to preconcentrate phosphate; the collected phosphate is then recovered by eluting with a 1 M sodium hydroxide solution. This method is effective for high concentrations of phosphate at low levels. The other method is column solid-phase extraction: a small column packed with Zr-C* is used for the in situ preconcentration of phosphate in field work. Both methods were successfully applied to environmental waters samples.
Journal
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- BUNSEKI KAGAKU
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BUNSEKI KAGAKU 48 (2), 215-224, 1999
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
- 1390282679028431616
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- NII Article ID
- 110002905682
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- NII Book ID
- AN00222633
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- COI
- 1:CAS:528:DyaK1MXhtFOhsLg%3D
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- NDL BIB ID
- 4642025
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- ISSN
- 05251931
- http://id.crossref.org/issn/05251931
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed