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Using electrochemistry - Total internal refection imaging ellipsometry to monitor biochemical oxygen demand on the surface tethered polyelectrolyte modified electrode
Liu W(刘巍); Li M(李萌); Lv BE; Chen YY(陈艳艳); Ma HW; Jin G(靳刚)
Source Publication10.1117/12.2078486
2015
Conference Name1st Conference on Quantitative Phase Imaging, QPI 2015,Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Conference DateFebruary 7, 2015 - February 10, 2015
Conference PlaceSan Francisco, CA, United states
AbstractOur previous work has proposed an electrochemistry - total internal reflection imaging ellipsometry (EC-TIRIE) technique to observe the dissolvedoxygen (DO) reduction on Clark electrode since high interface sensitivity makes TIRIE a useful tool to study redox reactions on the electrode surface.To amplify the optical signal noise ratio (OSNR), a surface tethered weak polyelectrolyte, carboxylated poly(oligo(ethylene glycol) methacrylate-random-2-hydroxyethylmethacrylate) (abbreviated as carboxylated poly(OEGMA-r-HEMA)), has been introduced on the electrode surface. Since Clark electrode is widely used in biochemical oxygen demand (BOD) detection, we use this technique to measure BOD in the sample. The dynamic range of the system is from 0 ∼ 25 mg/L. Two samples have been measured. Compared with the conventional method, the deviation of both optical and electrical signals are less than 10%. © 2015 SPIE.
DepartmentNML纳米生物光学
ISBN9781628414264
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58847
Collection国家微重力实验室
Recommended Citation
GB/T 7714
Liu W,Li M,Lv BE,et al. Using electrochemistry - Total internal refection imaging ellipsometry to monitor biochemical oxygen demand on the surface tethered polyelectrolyte modified electrode[C]10.1117/12.2078486,2015.
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