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  • Title: Iron-substituted SBA-15 microparticles: a peroxidase-like catalyst for H2O2 detection.
    Author: Liu S, Tian J, Wang L, Luo Y, Chang G, Sun X.
    Journal: Analyst; 2011 Dec 07; 136(23):4894-7. PubMed ID: 21966672.
    Abstract:
    In this communication, we demonstrate our recent finding that iron-substituted SBA-15 (Fe-SBA-15) microparticles possess intrinsic peroxidase-like activity and can catalyze the oxidation of peroxidase substrate 3,3',5,5'-tetramethylbenzidine (TMB) by H(2)O(2) to develop a blue color in aqueous solution, leading to a simple approach towards colorimetric detection of H(2)O(2) with a linear detection range from 0.4 μM to 15 μM (r = 0.997) and a detection limit of 0.2 μM.
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