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- W4240880780 abstract "シアン化物イオンはチオ尿素-銅(I)錯体陽イオンとイオン対を生成し,メチルイソブチルケトン(MIBK)に抽出されるので,この溶媒抽出系を利用した原子吸光法によるシアン化物イオンの間接定量法を検討した.有機相/水相の容積比を5ml/25mlとした場合,水相中の銅濃度を3×10-3M,チオ尿素濃度を1.2×10-2Mに保ち,pHを37(酢酸-酢酸ナトリウム)に調整すればシアン化物イオンはMIBKに定量的に抽出される.検量線は(1～25)μg/25mlの範囲で直線を示し,5μg/25mlのシアン化物イオンに対する10回の繰り返し実験の変動係数は1.7%であった.実試料を分析する際には,あらかじめ蒸留法によりシアン化物イオンを分離した後本法を適用した.本法を工場排水中のシアン化物イオンの定量に応用した結果,従来の吸光光度法による結果とよく一致した。" @default.
- W4240880780 created "2022-05-12" @default.
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- W4240880780 date "1983-01-01" @default.
- W4240880780 modified "2023-09-25" @default.
- W4240880780 title "Indirect determination of cyanide ion in water by atomic absorption spectrophotometry" @default.
- W4240880780 doi "https://doi.org/10.2116/bunsekikagaku.32.6_373" @default.
- W4240880780 hasPublicationYear "1983" @default.
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