Journal
ANALYST
Volume 136, Issue 23, Pages 4894-4897Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1an15654c
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Funding
- National Basic Research Program of China [2011CB935800]
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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 H2O2 to develop a blue color in aqueous solution, leading to a simple approach towards colorimetric detection of H2O2 with a linear detection range from 0.4 mu M to 15 mu M (r = 0.997) and a detection limit of 0.2 mu M.
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