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- W2334984018 abstract "酸化鉄中の極微量鉛の定量にシアンを用いない分析法として,原子吸光分析法に新たに溶媒抽出の併用を検討した.試料を酸で分解し,多量の鉄をジハイドロオキシエチルグリシンとクエン酸アンモニウムでいんぺいしたのち,ジチゾンーメチルイソブチルケトンで抽出して,波長2170Åで定量する.150mgの鉄,500μgのクロム,コバルト,ニッケルおよび亜鉛,200μgの銅が共存しても抽出に影響しない.本法の感度は水溶液の場合の約5倍で,メチルイソブチルケトン1ml中1μgの鉛の吸光度は約0,055であった.また本法の精度は変動係数で3%であり,ジチゾン・ベンゼン法による吸光光度法と比較して満足すべきものであり,管理分析にはむしろすぐれていて,酸化鉄中の0.0001～0.0100%の極微量の鉛の定量に適している." @default.
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- W2334984018 date "1968-01-01" @default.
- W2334984018 modified "2023-10-16" @default.
- W2334984018 title "Atomic absorption spectrometric determination of microamounts of lead in iron oxide" @default.
- W2334984018 doi "https://doi.org/10.2116/bunsekikagaku.17.997" @default.
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