Composition, device and method for determining reducing agents

Details Composition, device and method for determining reducing agents Composition, device and method for determining reducing agents

1977-08-11

1979-02-27

Randolph, John D.

Chemistry: physical processes

Physical processes

Crystallization

23230M, 252408R, 544 37, 544102, 544103, 422 56, C07D27934, G01N 3122, C07D26538

Patent

active

041416880

ABSTRACT:
A composition, device and method for determining the presence of a reducing agent, such as ascorbic acid, in a test sample are disclosed. The composition comprises certain thiazine and oxazine compounds which, in their oxidized state, are colored, but which become colorless when reduced by a reducing agent. The device comprises a carrier matrix incorporated with the composition, and the method comprises contacting a test sample with the composition device and observing any detectable response such as a color change.

REFERENCES:
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Elliott et al., Journal of Research of the National Bureau of Standards vol. 26, pp. 117 to 128 (Research Paper RP 1364), (1941).
Stuzka et al., Chemical Abstracts vol. 75, Abst. No. 29564 (1971).
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