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- W2324971912 abstract "黒鉛炉原子吸光法により,鉄鋼中の微量ヒ素の定量法を検討した.鉄鋼試料を硝酸と塩酸で分解した.その溶液20μlを黒鉛炉に取り付けたL'vovプラットフォーム上にオートサンプラーで注入し,パージガスにアルゴンを用いて灰化(750℃-30s)及び原子化(2400℃-ランプ0s,保持4s)を行い,ヒ素の原子吸光を193.7nmで測定した.共存元素の影響はピーク面積で測定し,又バックグラウンド吸収の補正は交流磁石を用いたゼーマン法で行うことで抑制した.検量線溶液は鉄溶液にヒ素の標準溶液を添加し,酸濃度を試料溶液と同じに調整した.本法による相対標準偏差(RSD)は,銑鉄中の19ppmヒ素で2.8%(n=8)であった.更に検出下限(から試験値の標準偏差の3倍)は0.5g試料で0.08ppmであった.又,同一黒鉛炉で約200回まで安定した測定が可能であった." @default.
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- W2324971912 date "1990-01-01" @default.
- W2324971912 modified "2023-09-26" @default.
- W2324971912 title "Determination of trace amount of arsenic in iron and steels by graphite furnace AAS." @default.
- W2324971912 doi "https://doi.org/10.2116/bunsekikagaku.39.9_497" @default.
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