Wir verwenden Cookies und Analyse-Tools, um die Nutzerfreundlichkeit der Internet-Seite zu verbessern und für Marketingzwecke. Wenn Sie fortfahren, diese Seite zu verwenden, nehmen wir an, dass Sie damit einverstanden sind. Zur Datenschutzerklärung.
Investigation of drift correction and lifetime extension strategies for electrochemical nitrite sensors
CHF 23.65
Auf Lager
SKU
TSBLBUAS4GC
1 Verfügbar 
Geliefert zwischen Mo., 23.02.2026 und Di., 24.02.2026
Details
Excessive nitrite in water poses serious health and environmental risks, requiring reliable long-term monitoring. Electrochemical sensors offer advantages due to their sensitivity, low cost, and ease of use; however, they suffer from aging, which affects accuracy over time. This thesis addresses this limitation by developing and optimizing a nitrite sensor based on screen-printed carbon electrodes modified with electrodeposited gold. The sensor achieved promising performance, including a 15-day shelf life. A multidisciplinary study investigated aging mechanisms using electrochemical techniques (voltammetry, impedance spectroscopy) and physical methods (Raman, FTIR, SEM). The double-layer capacitance (Cdl) was identified as the most aging-sensitive parameter. An accelerated aging protocol in contaminated solution was designed to simulate long-term behavior. A systematic methodology for lifetime estimation, drift correction, and life extension was proposed. Applying an anti-fouling polymer layer extended the shelf life to 18 days. A novel correction method ensured accuracy despite aging and was validated in tap and groundwater. The approach enables sensor optimization and reliability in environmental applications.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09783961002443
- Lesemotiv Verstehen
- Genre Thermal Engineering
- Anzahl Seiten 316
- Herausgeber Universitätsverlag Chemnitz
- Gewicht 460g
- Größe H19mm x B148mm x T210mm
- EAN 9783961002443
- Titel Investigation of drift correction and lifetime extension strategies for electrochemical nitrite sensors
- Autor Amina Brahem
Bewertungen
Schreiben Sie eine Bewertung
