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- W2020221520 abstract "A simple and rapid method is described for the spectrophotometric determination of lead in steel, brass and bronze alloys down to 0.001 %. After solution of the sample, lead is separated from the major component, in steel by iso-amyl acetate extraction of the iron, and in brass or bronze alloys by coprecipitation of the lead with calcium carbonate in ammoniacal solution. It is then determined by the procedure described in Part I of this series. Eine einfache und schnelle Methode zur spektral-photometrischen Bestimmung von Blei in Stahl, Messing- und Bronzelegierungen bei Konzentrationen bis herunter zu 0,001% wird beschrieben. Nach Lösen der Probe wird Blei vom Hauptbestandteil getrennt: in Stahl durch Extraktion von Eisen mit Isoamylacetat, in Messing-oder Bronzelegierungen durch Trägerfällung mit Caiciumcarbonat in ammoniakalischer Lösung. Dann wird das Blei nach der in Teil I dieser Reihe angegebenen Vorschrift quantitativ bestimmt. On décrit une méthode simple et rapide de dosage spectrophotométrique du plomb dans l'acier et les alliages de laiton et de bronze, jusqu'à une teneur de 0,001 %. Après mise en solution de l'éhantillon, on sépare le plomb du constituant principal, dans l'acier par extraction du fer à l'acétate d'isoamyle, et dans les alliages de laiton ou de bronze, par coprécipitation avec du carbonate de calcium en solution ammoniacale. On le dose ensuite par la technique décrite dans la partie I de cette série." @default.
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- W2020221520 date "1965-06-01" @default.
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- W2020221520 title "Determination of lead with 4-(2-pyridylazo)-resorcinol—II Application to steel, brass and bronze" @default.
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- W2020221520 doi "https://doi.org/10.1016/0039-9140(65)80072-8" @default.
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