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- W9071305 abstract "The inorganic and organic trace element associations in the kerogen isolated from the New Albany shale were studied by analysis of kerogen fractions and a mineral residue obtained using density separations. Elemental mass balance data from these fractions indicate a predominantly inorganic association with pyrite and marcasite for several elements (As, Co, Ga, Mn, Ni, Sb and Se). The degree of inorganic association of these elements was determined by treatment of the mineral residue ({approximately}85% FeS{sub 2}) with dilute HNO{sub 3} to remove pyrite and marcasite. The association of several other elements in minerals which are insoluble in dilute HNO{sub 3} (rutile, zircon, etc.) were also determined. The results of these studies indicate an essentially total organic association for V and approximately 95% organic association for Ni in New Albany kerogen. The determination of organically combined elements is very difficult for those elements which are predominantly concentrated in the mineral fraction. Correction methods based on low temperature ashing, chemical removal of pyrite, and physical methods of separation are compared." @default.
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- W9071305 date "1989-03-01" @default.
- W9071305 modified "2023-09-24" @default.
- W9071305 title "Determination of organic inorganic associations of trace elements in New Albany shale kerogen" @default.
- W9071305 hasPublicationYear "1989" @default.
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