Preconcentration for the determination of trace metals in highly purified water.
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- NAKAMURA Eiko
- Department of Chemistry, Faculty of Education, Yokohama National University
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- WATANABE Masayuki
- Denkikagakukeiki Co.
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- NAMIKI Hiroshi
- Department of Applied Chemistry, Faculty of Engineering, Kogakuin University
Bibliographic Information
- Other Title
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- 高純度水中の微量金属の濃縮定量
- コウ ジュンド スイチュウ ノ ビリョウ キンゾク ノ ノウシュク テイリョウ
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Abstract
A non-boiling evaporation method has been studied for the preconcentration of trace metals in highly purified water. A sample (50100 cm3) was taken to a polycarbonate Erlenmeyer flask (250 cm3), and then placed into a water-ethylene glycol (1:1) bath (120°C). While the temperature of the sample was maintained at about 95°C, the vapor in the flask was led to a receiver in an ice bath by passing through air circulated with an air pump for condensation. About 2 hours were required for evaporation to dryness of a 100 cm3 sample solution. After evaporation, 0.5 g of water or HNO3 (0.3 M) was added to dissolve the residue. The metals in the solution were then analyzed by a flameless AAS. Sodium, potassium, magnesium and zinc in highly purified water were found to be determined at a level of 12 ng/dm3 by the proposed method.
Journal
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- BUNSEKI KAGAKU
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BUNSEKI KAGAKU 46 (8), 669-675, 1997
The Japan Society for Analytical Chemistry
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Details 詳細情報について
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- CRID
- 1390282679029035520
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- NII Article ID
- 110002907177
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- NII Book ID
- AN00222633
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- NDL BIB ID
- 4275525
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- 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