Porter-Silber chromogens reaction
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Porter-Silber reaction — the reaction of the dihydroxyacetone side chain of certain 17 hydroxycorticosteroids (Porter Silber chromogens) with phenylhydrazine in acid, which produces a yellow color; an index of adrenocortical function now largely supplanted by immunoassay … Medical dictionary
Porter — Curt C., U.S. biochemist, *1914. See P. Silber chromogens, under chromogen, P. Silber reaction, P. Silber chromogens test. Thomas C., British scientist, 1860–1933. See Ferry P. law. William H., Irish surgeon, 1790–1861. See P. fascia … Medical dictionary
Silber — Robert H., U.S. biochemist, *1915. See Porter S. chromogens, under chromogen, Porter S. reaction, Porter S. chromogens test … Medical dictionary
test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… … Medical dictionary
chromogen — 1. A substance, itself without definite color, that may be transformed into a pigment; denoting especially benzene and its homologs toluene, xylene, quinone, naphthalene, and anthracene, from which the aniline dyes are manufactured. 2. A … Medical dictionary
17-hydroxycorticosteroid — 17 hy·droxy·cor·ti·co·ste·roid .sev ən tēn hī .dräk sē .kȯrt i kō sti(ə)r .ȯidalso ste(ə)r n any of several adrenocorticosteroids (as cortisol) with an OH group and an HOCH2CO group attached to carbon 17 of the fused ring structure of the… … Medical dictionary
