CPC G01N 31/228 (2013.01) [B01J 23/10 (2013.01); B01J 35/50 (2024.01); G01N 31/10 (2013.01)] | 11 Claims |
1. An indicator article for detecting hydrogen peroxide, comprising
a substrate and an indicator composition deposited thereon, wherein the indicator composition comprises:
at least one indicator compound comprising 4,4′-diamino-2,2′-stilbenedisulfonic acid (DSSA); and
a catalyst comprising cerium (IV) oxide nanoparticles;
wherein the indicator composition comprises an optical property,
wherein a visually detectable change in the optical property of the indicator composition is associated with a presence of hydrogen peroxide.
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