ABSTRACT A system for the digital quantitative colorimetricanalysis of NAD(P)H and biological fluids and organiccompounds that generate NAD(P)H when reacted with a specificdehydrogenase. An NAD(P)H-dependent chromogen reductionoccurs, which results in a visible color change. A knownquantity of a competing reactant for the NAD(P)H is used,which prevents the chromogen from reacting and changing coloruntil the reactant is consumed, the quantity of whichcorresponds to the threshold concentration of the NAD(P)H orthe compound reacting to generate NAD(P)H. Disposabledevices and methods of use are also disclosed.

Title
Systeme numerique danalyse colorimetrique a seuil de concentration
Digital threshold color control system
Application Number
554476
Publication Number
1312539
Application Date
December 16, 1987
Publication Date
January 12, 1993
Inventor
Timmerman Marsha W
Palmer John L
Agent
BLAKE CASSELS & GRAYDON
Assignee
Enzymatics
IPC
G01N 33/52
C12Q 01/32
C12Q 01/00
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