P1NM.7 - Detection of Nitrite by Copper Interdigitated Electrode with Nickel-Cobalt Nanowires
- Event
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
Vienna, Austria - Chapter
- P-1 - Nanomaterials
- Author(s)
- Y. Chang, G. Shen, S. Liu - Department of Mechanical Engineering Chung Yuan Christian University Chung Li District, Taoyuan City (Taiwan)
- Pages
- 590 - 593
- DOI
- 10.5162/IMCS2018/P1NM.7
- ISBN
- 978-3-9816876-9-9
- Price
- free
Abstract
This paper presents an analytic chip consisting of copper interdigitated electrodes (Cu-IDE) and nickel-cobalt alloy nanowires (Ni–Co NWs) for the measurement of nitrite. Surface modification using 5-amino-1,3,4-thiadiazole-2-thio (ATT) was performed to promote the binding ability of Ni–Co NWs with nitrite ions. Then, electrical measurement using HP 4145B semiconductor parameter analyzer was carried out for detecting the nitrite concentrations. The experimental results show that the measured curves of nitrite concentrations are distinguishable and in concentration order. The detection limit was 0.04 mM. However, only 2 μL of nitrite solution was required for measurement.