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- W1999392246 abstract "On sépare quantitativement le nickel du cobalt par échange d'ions sur une résine cationique Dowex 50-X8 en milieu acétone 90%-acide chlorhydrique 0.6 M. Le nickel est ensuite dosé par spectrométrie d'absorption atomique. Afin d'améliorer la sensibilité on utilise un dispositif de pulvérisation par ultra-sons. Dans ces conditions, on dose 1.10-6 de nickel avec une précision do l'ordre de 20%. Quantitative separation of nickel from cobalt has been achieved by means of a cation-exchange resin, Dowex 50-X8, in a 90% acetone-0.6 M hydrochloric acid medium. Nickel is then determined by atomic absorption spectrophotometry; the sensitivity of the method is increased by means of an ultrasonic spraying device. Under these conditions, 1 p.p.m. of nickel can be measured with an accuracy of ca. 20%. Es wird die quantitative Trennung des Nickels vom Kobalt mittels Dowex 50-X8 in 90%igem Aceton-0.6 M salzsaurem Medium beschrieben. Das Nickel wird mit der Atomabsorptionsspektrometrie bestimmt. Die Empfindlichkeit der Methode wird durch Ultraschallversprühung gesteigert. Unter diesen Bedingungen können 1 p.p.m. Nickel mit einer Genauigkeit von etwa 20% bestimmt werden." @default.
- W1999392246 created "2016-06-24" @default.
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- W1999392246 date "1969-01-01" @default.
- W1999392246 modified "2023-10-16" @default.
- W1999392246 title "Le dosage du nickel dans le cobalt de tres haute purete par spectrometrie d'absorption atomique" @default.
- W1999392246 cites W1977947301 @default.
- W1999392246 doi "https://doi.org/10.1016/s0003-2670(01)81733-5" @default.
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