Electrode Modified with Tin(IV) Oxide Nanoparticles and Surfactants as Sensitive Sensor for Hesperidin
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Tin(IV) oxide nanoparticles in combination with surfactants were used as a sensitive layer in a sensor for hesperidin. The effect of the surfactant’s nature and concentration on the hesperidin response was evaluated. The best parameters were registered in the case of 500 µM cetylpyridinium bromide (CPB) as a dispersive agent. The SEM and electrochemical data confirmed the increase in sensor surface effective area and electron transfer rate. The sensor gave a linear response to hesperidin in the ranges of 0.10–10 and 10–75 µM with a detection limit of 77 nM. The approach was successfully tested on orange juices and validated using ultra-HPLC.
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1987 ◽
Vol 109
(7)
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pp. 1916-1920
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1988 ◽
Vol 92
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pp. 1016-1018
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2006 ◽
Vol 110
(39)
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pp. 19433-19442
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1999 ◽
Vol 121
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pp. 8352-8355
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1993 ◽
Vol 268
(24)
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pp. 17680-17682
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