長鎖8-キノリノール液体膜によるウラン(VI)の濃縮(<特集>超微量分析のための前処理と予備濃縮)
書誌事項
- タイトル別名
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- Concentration of uranium(VI) on long-chain 8-quinolinol liquid membrane.
- 長鎖８‐キノリノール液体膜によるウラン（ＶＩ）の濃縮
- チョウサ 8 キノリノール エキタイ マク ニ ヨル ウラン 6 ノ ノウシュ
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Extraction of U(VI) from weakly acidic media has been investigated by using alkyl derivatives of 8-quinolinol; 5-octyloxymethyl- (HO8Q ), 5-decyloxymethyl-(HO10Q) and 5-dioctylaminomethyl-8-quinolinol (HN8Q). The ability for the extraction of U increased in the order, HO10Q<HO8Q<HN8Q. Supported liquid membranes (SLM) containing these long-chain 8-quinolinols as a mobile carrier have been studied for their ability to transport and concentrate U from dilute solutions. Uranium was effectively transported by the HO8Q and HO10Q carriers from the feed solutions of pH around 5 into the stripping solution of dilute nitric acid against its concentration gradient. The concentration of U in the feed solution decreased as indicated by, ln ([U]f, t/[U] f, 0) = -kobst. Variation of carrier concentration and the feed pH gave a slight effect on kobs values. The recovery of U into the stripping solution attained 95% with the HO8Q carrier and 70% with the HN8Q carrier, leaving a small portion of U in the membrane layer. Approximately quantitative recovery of U was achieved by the HO10Q carrier; U was sufficiently concentrated from dilute solutions such as seawater spiked with 10-6 mol dm-3 U.
収録刊行物
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- 分析化学
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分析化学 36 (11), 707-711, 1987
公益社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679029112192
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- NII論文ID
- 110002909504
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- NII書誌ID
- AN00222633
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- COI
- 1:CAS:528:DyaL1cXlvF2mtg%3D%3D
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- NDL書誌ID
- 3156071
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- ISSN
- 05251931
- http://id.crossref.org/issn/05251931
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可