Stabilization of benzidine-type indicators with various enhancers
AssigneeMiles Laboratories, Inc.
InventorsThomas A. Magers, David L. Tabb
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Abstract
An improved composition, device and method, whereby enhanced sensitivity is achieved in detecting test sample constituents such as glucose and blood. The improvement resides in the use of a broad range of compounds as enhancers for benzidine-type indicators. The enhancer tends to stabilize the blue colorform of such indicators.
Claims5
In a composition for detecting the presence of a constituent in a test sample, said composition comprising a benzidine-type indicator, the improvement wherein said composition additionally comprises an enhancer compound have the structure ##STR5## wherein X is OH, CN, NO.sub.2, CHO, SO.sub.3 R' or NRCOR';
- R is lower alkyl;
- and R' is H or lower alkyl.
Dependencies are inferred from the claim text.