Eastman-kodak Company

Doyle E Hill

Karl J Sanford

A calibrator composition is disclosed in which a bias due to a dialyzed blood serum matrix is reduced to an acceptable level by the addition of a compatible, organic material. Methods of preparing and using the same are also disclosed.

Calibrator composition based upon dialyzed blood serum

A multi-zone analytical element for the analysis of a proteinaceous or protein-bound substance contained in an aqueous liquid and a method of using the same are disclosed. The multi-zone element contains a spreading zone and a reagent zone in fluid contact. The reagent zone of the element contains an interactive composition. Incorporated in the spreading zone of the element is an immobilized polymeric material containing charge-bearing functional groups that, under conditions of use of the element, exhibit an electric charge opposite to that of said proteinaceous substance or the protein portion of said protein-bound substance.

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Fairport, NY, United States of America

Doyle E Hill