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Chromatographie sur papier des Molybdates. Titrage direct des taches de Molybdène chromatographié, séparé du Chrome et du Vanadium

par Lacourt, Alice ;Sommereyns, Ghislaine ;Denis, Alain ;Wantier, G.
Référence Mikrochimica acta, 40, 3, page (268-284)
Publication Publié, 1953-09

Article révisé par les pairs

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Résumé :

Under the conditions outlined here, molybdenum chromatographed on Whatman paper No. 4, may be determined by absorption, within about ± 1%, for an amount of the order of 10 micrograms. The direct determination of this same quantity of molybdenum by titration can be made within about ± 3%. Separated from chromium and vanadium by chromatography, the precision of the titration after chromatography remains of the same order. The direct titration gains three hours over absorption. © 1953 Springer-Verlag.