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- W2023429105 abstract "The sample solution containing chromium was vaporized and atomized from a tantalum filament by electrical heating into an argon stream within an absorption chamber. The interference of various metals on the atomic absorption spectrometry of chromium was investigated. Interferences were minimized by using a high filament temperature. The flameless atomizer was used for the determination of chromium in steel at a filament temperature of 2150°; with the steels investigated no matrix effect was observed, and the accuracy and precision were satisfactory. On propose une méthode de dosage du chrome à l'état de traces, par spectrométrie par absorption atomique, avec atomiseur à filament de tantale. On examine l'influence de divers métaux. Les interférences sont réduites au minimum en portant le filament à des températures élevées. L'atomiseur sans flamme a été utilisé pour le dosage du chrome dans l'acier à une température de filament de 2150°. Aucun effet de matrice n'a été observé avec les aciers examinés; exactitude et précision sont satisfaisantes. Die chromhaltige Probenlösung wurde mittels eines elektrisch geheitzten Tantalfadens in einem Argonstrom innerhalb einer Absorptionskammer verdampft und atomisiert. Die Störungen verschiedener Metalle bei der Atomabsorptionsspektrometrie von Chrom wurden untersucht. Die geringsten Störungen traten bei hoher Heizfadentemperatur auf. Der flammenlose Atomisator wurde auf die Bestimmung von Chrom in Stahl bei einer Heizfadentemperatur von 2150° angewendet. Bei den untersuchten Stählen wurde kein Matrixeffekt beobachtet, und die Genauigkeit und Reproduzierbarkeit waren zufriedenstellend." @default.
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- W2023429105 date "1973-01-01" @default.
- W2023429105 modified "2023-09-27" @default.
- W2023429105 title "Determination of trace amounts of chromium by atomic absorption spectrometry with a tantalum filament atomizer" @default.
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- W2023429105 doi "https://doi.org/10.1016/s0003-2670(01)80196-3" @default.
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