高純度水中の微量金属の濃縮定量

• 中村 栄子

  横浜国立大学教育学部化学教室

• 渡辺 昌之

  電気化学計器株式会社

• 並木 博

  工学院大学工学部応用化学科

書誌事項

タイトル別名

• Preconcentration for the determination of trace metals in highly purified water.
• 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

抄録

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.

収録刊行物

• 分析化学

  分析化学 46 (8), 669-675, 1997

  公益社団法人 日本分析化学会

キーワード

• preconcentration of metal by non-boiling evaporation
• determination of metal in highly purified water

詳細情報

• CRID: 1390282679029035520
• NII論文ID: 110002907177
• NII書誌ID: AN00222633
• DOI: 10.2116/bunsekikagaku.46.669
• NDL書誌ID: 4275525
• ISSN: 05251931
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4275525
• Web Site: http://www.jstage.jst.go.jp/article/bunsekikagaku1952/46/8/46_8_669/_pdf
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10894113
• 本文言語コード: ja
• データソース種別:
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