Johnson & Johnson Clinical Diagnostics, Inc.

Eastman-kodak Company

Mohan S Saini

Ignazio S Ponticello

Barbara A Brummond

Thomas C Arter

A dry analytical element has been prepared for the assay of prostatic acid phosphatase at a pH of from about 3 to about 6.5. The element can be a single porous spreading zone or a multilayer structure. Within the element is a relatively nonhygroscopic aromatic phosphate substrate for the analyte which produces a phenol reaction product. This product is reacted with a diazonium or tetrazolium salt, also in the element, to produce a chromophore for detection. A buffer in the element maintains it at the proper pH during the assay.

Dry analytical element and method for the detection of prostatic acid

An immunoassay method and analytical elements for detecting carbamazepine drugs, for example, in body fluids, is described. The immunoassay method comprises:

Immunoassays with novel labeled carbamazepine hapten analogues

A labeled carbamazepine analogue is described comprising:

Labeled carbamazepine hapten analogues for competitive enzyme

New carbamazepine hapten analogues are described comprising: (A) an active ester group; (B) a carbamazepine nucleus; and (C) a linking chain (i) linking the carboxamide group of the carbamazepine nucleus to the active ester group, said linking chain having about 4 to about 40 atoms consisting of:

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Pittsford, NY, United States of America

Mohan S Saini