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Autor:
Aqeel Fatmi, J. F. Galobardes, Kenneth Pearsall, Floyd W. Crouch, Shmuel Kraus, E. H. Schmauch, Mercedes R. Galobardes, L.B. Rogers, C. S. Sommer
Publikováno v:
Separation Science and Technology. 18:603-634
Samples containing vanadium and nickel nonporphyrin complexes were isolated from Boscan crude oil from Venezuela. Chromatographic studies indicated that a broad molecular weight range of components existed so that silica packings having a 300 A avera