Product Name Zensor Screen Printed Electrodes Product Code NCZSPE101 Diameter of WE 2 mm, 3 mm, 4 mm, 5 mm Size of RE 0.5 x 1 mm Ratio CE/WE Surface Area 4/1 Shape Rectangle Overall Dimension 50 x 10mm Thickness 0.5mm Thickness of Coated Material 10 um Working Electrode Graphite/Gold/Graphene/CNT/Platinum/Silver (customization possible) Counter Electrode Graphite/Gold/Silver Reference Electrode Ag/AgCl Substrate Valox FR1 Packaging 10, 40, 50, 100, 200, 500, 1000 Pcs etc.
- Dimensions: 50 x 13 mm (h x w)
- Working electrode: 3 mm diameter disk
- Materials: graphitic carbon powder (working and auxiliary electrodes), Ag/AgCl pellet (reference)
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These Zensor screen printed electrodes (SPEs) feature a carbon working electrode (central circle), carbon auxiliary (outer annular crescent) and Ag/AgCl pellet reference electrode. They can be used as low-cost disposable electrodes in aqueous solutions of moderate pH. Disposable SPEs can be used as an alternative to expensive glassy carbon or platinum electrodes for teaching experiments, or routine analyses, where a clean reproducible surface would otherwise require time-consuming electrode polishing.
Relatively large tabs at the top of the SPE enable electrical contact with standard miniature alligator clips (no special cables required).
If using solutions that contain species which might react with the Ag/AgCl pellet reference (sulfide, iodide, cyanide, ammonia, etc.) then the Zensor SE100 SPE working electrode is recommended using a conventional reference and auxiliary electrodes, with an intervening salt bridge in cases of serious interference.
Not suitable for use with organic solvents, or concentrated acidic or basic aqueous solutions.
Electrogenerated Chemiluminescence Detection in Paper-Based Microfluidic Sensors. Jacqui L. Delaney, Conor F. Hogan, Junfei Tian, and Wei Shen, Analytical Chemistry, 83, 1300–1306, 2011
A Microbial Sensor Based on Direct Electron Transfer at Shewanella Sp. Drop-Coated Screen-Printed Carbon Electrodes. Kariate Sudhakara Prasad, A. B. Arun, P. D. Rekha, Chiu-Chung Young, Jen-Lin Chang, and Jyh-Myng Zen, Electroanalysis, 21, 1646–1650, 2009.
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Attomole DNA Electrochemical Sensor for the Detection of Escherichia coli O157. Wei-Ching Liao and Ja-an Annie Ho, Analytical Chemistry, 81, 2470–2476, 2009.£0.00