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A novel conductometric sensor based on a PVC membrane containing nonactin for ammonium determination
- Source :
- International Journal of Environmental Analytical Chemistry, International Journal of Environmental Analytical Chemistry, Taylor & Francis, 2009, 89 (1), p. 11-p. 19. ⟨10.1080/03067310802339785⟩
- Publication Year :
- 2009
- Publisher :
- HAL CCSD, 2009.
-
Abstract
- This work presents a new sensor for ammonium determination based on interdigitated conductometric thin-film planar electrodes. It was fabricated by including nonactin in a plasticised poly(vinyl chloride) membrane deposited on the sensitive area of the transducer. The effects of pH, buffer concentration, the interferences of Na+, K+ and Ca2+ ions, the effect of ionic strength and of temperature were investigated. The linear working range and sensitivity of the biosensor were also determined. The sensitivity of the ammonium detection was around 6.2 S M-1 [image omitted] and the detection limit was 2 10-5 M. The biosensor exhibits the advantages of a simple fabrication procedure, good sensor-to-sensor reproducibility, wide dynamic range and good storage stability (12 weeks).
- Subjects :
- Health, Toxicology and Mutagenesis
Inorganic chemistry
BIOCAPTEUR
Soil Science
Nonactin
02 engineering and technology
01 natural sciences
Planar electrode
Analytical Chemistry
chemistry.chemical_compound
CONDUCTIMETER
RIVER
Environmental Chemistry
Ammonium
Waste Management and Disposal
Water Science and Technology
WATER ANALYSIS
010401 analytical chemistry
Public Health, Environmental and Occupational Health
technology, industry, and agriculture
AMMONIUM
021001 nanoscience & nanotechnology
Pollution
0104 chemical sciences
CONDUCTIMETRE
MICROSENSOR
Membrane
COURS D'EAU
chemistry
MICRO CAPTEUR
Electrode
[SDE]Environmental Sciences
NOACTIN
ANALYSE DE L'EAU
MEMBRANE
0210 nano-technology
Biosensor
Subjects
Details
- Language :
- English
- ISSN :
- 03067319 and 10290397
- Database :
- OpenAIRE
- Journal :
- International Journal of Environmental Analytical Chemistry, International Journal of Environmental Analytical Chemistry, Taylor & Francis, 2009, 89 (1), p. 11-p. 19. ⟨10.1080/03067310802339785⟩
- Accession number :
- edsair.doi.dedup.....bf0a44d635ada911f49d7c55fee6a9b3