環境水中の微量銅(11)のキレート樹脂濃縮における共存有機物の妨害とその紫外線照射分解法(<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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- Interference of organic material with chelating resin preconcentration of trace copper in environmental water and its elimination by photochemical decomposition.
- 環境水中の微量銅(II)のキレート樹脂濃縮における共存有機物の妨害とその紫外線照射分解法
- カンキョウスイチュウ ノ ビリョウ ドウ 2 ノ キレート ジュシ ノウシュク
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Photochemical decomposition and acid digestion followed by concentration of copper with Chelex 100 chelating resin were studied. Standard 6.13 ppb copper samples containing 4 ppm of humic acid or EDTA adjusted at pH 8 were used for digestion and recovery test. Huminc acid or EDTA in the sample was completely decomposed by UV irradiation for over 20 min at pH 1 and copper was quantitatively recovered. On the other hand, the acid digestion by boiling for 3 h at pH 1 gave 90% and 0% of the recovery of copper from humic acid solution and EDTA solution, respectively. When the humic acid solution was not treated, the recovery was 14.5%. The recommended procedure was as follows. Sample (400 ml) adjusted at pH 1 with 1 M nitric acid was photo-oxidized by UV irradiation for 30 min. Copper was concentrated on chelating resin (Chelex 100) at pH 5 and eluted with 10 ml of 1 M nitric acid. Copper in the effluent was determined by spectrophotometry with tetrakis (4-N-trimethylaminophenyl) porphine. The relative standerd deviation for the standerd sample was 3.65% (n=7). The present method was applied to the determination of copper in the seawater.
収録刊行物
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- 分析化学
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分析化学 36 (11), 799-801, 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
- 1390001204051501440
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- NII論文ID
- 110002909521
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- NII書誌ID
- AN00222633
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- COI
- 1:CAS:528:DyaL1cXis1OgtQ%3D%3D
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- NDL書誌ID
- 3156088
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- 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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- 使用不可