Please use this identifier to cite or link to this item:
http://paper.sci.ui.ac.id/jspui/handle/2808.28/176
Title: | Development of a Biochemical Oxygen Demand Sensor Using Gold-Modified Boron Doped Diamond Electrodes |
Authors: | Tribidasari, Ivandini A. Saepudin, Endang Wardah, Habibah Dewangga, Netra Einaga, Yasuaki |
Issue Date: | Oct-2012 |
Publisher: | American Chemical Society |
Series/Report no.: | Volume 84;No. 22 |
Abstract: | Gold-modified boron doped diamond (BDD) electrodes were examined for the amperometric detection of oxygen as well as a detector for measuring biochemical oxygen demand (BOD) using Rhodotorula mucilaginosa UICC Y-181. An optimum potential of −0.5 V (vs Ag/AgCl) was applied, and the optimum waiting time was observed to be 20 min. A linear calibration curve for oxygen reduction was achieved with a sensitivity of 1.4 μA mg–1 L oxygen. Furthermore, a linear calibration curve in the glucose concentration range of 0.1–0.5 mM (equivalent to 10–50 mg L–1 BOD) was obtained with an estimated detection limit of 4 mg L–1 BOD. Excellent reproducibility of the BOD sensor was shown with an RSD of 0.9%. Moreover, the BOD sensor showed good tolerance against the presence of copper ions up to a maximum concentration of 0.80 μM (equivalent to 50 ppb). The sensor was applied to BOD measurements of the water from a lake at the University of Indonesia in Jakarta, Indonesia, with results comparable to those made using a standard method for BOD measurement. |
URI: | http://paper.sci.ui.ac.id/jspui/handle/2808.28/176 |
ISSN: | 0003-2700 |
Appears in Collections: | Journal Collection |
Files in This Item:
File | Description | Size | Format | |
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Ivandini.Analytical Chemistry.2012.pdf | 9,75 MB | Adobe PDF | View/Open Request a copy |
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