Iron-substituted SBA-15 microparticles: a peroxidase-like catalyst for H2O2 detection.
نویسندگان
چکیده
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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ورودعنوان ژورنال:
- The Analyst
دوره 136 23 شماره
صفحات -
تاریخ انتشار 2011