G - Physics – 01 – N
Patent
G - Physics
01
N
150/26, 150/3
G01N 33/52 (2006.01) G01N 33/82 (2006.01)
Patent
CA 1139646
ABSTRACT OF THE DISCLOSURE A system composed of a complex of a chelating agent with a polyvalent metal ion in its higher valency, an indicator capable of reacting with said metal ion in its lower valency and a buffering agent is disclosed as a composition and a test strip useful for colorimetric analysis of ascorbic acid present in body fluid.
350084
Ishitobi Kaoru
Ogawa Yasunao
Johnson Douglas S. Q.c.
Shionogi & Co. Ltd.
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