Next Article in Journal
Processing and Characterization of a Novel Distributed Strain Sensor Using Carbon Nanotube-Based Nonwoven Composites
Next Article in Special Issue
V-Alert: Description and Validation of a Vulnerable Road User Alert System in the Framework of a Smart City
Previous Article in Journal
Fast T Wave Detection Calibrated by Clinical Knowledge with Annotation of P and T Waves
Previous Article in Special Issue
Contextual Sensing: Integrating Contextual Information with Human and Technical Geo-Sensor Information for Smart Cities
Open AccessArticle

Electrochemical Impedance Sensors for Monitoring Trace Amounts of NO3 in Selected Growing Media

1
Department of Electrical and Computer Engineering, Laval University, Quebec, QC G1V 0A6, Canada
2
Department of Chemistry, Laval University, Quebec, QC G1V 0A6, Canada
3
Centre for Optics, Photonics and Lasers (COPL), Laval University, Quebec, QC G1V 0A6, Canada
4
Ministère des Forêts, de la Faune et des Parcs. Quebec, G1P 3W8, Canada
5
JIRU Instituto de Quimica, Araraquara-SP 14800-060, Brazil
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Antonio Puliafito
Sensors 2015, 15(7), 17715-17727; https://doi.org/10.3390/s150717715
Received: 30 April 2015 / Revised: 27 June 2015 / Accepted: 9 July 2015 / Published: 21 July 2015
(This article belongs to the Special Issue Sensors and Smart Cities)
With the advent of smart cities and big data, precision agriculture allows the feeding of sensor data into online databases for continuous crop monitoring, production optimization, and data storage. This paper describes a low-cost, compact, and scalable nitrate sensor based on electrochemical impedance spectroscopy for monitoring trace amounts of NO3 in selected growing media. The nitrate sensor can be integrated to conventional microelectronics to perform online nitrate sensing continuously over a wide concentration range from 0.1 ppm to 100 ppm, with a response time of about 1 min, and feed data into a database for storage and analysis. The paper describes the structural design, the Nyquist impedance response, the measurement sensitivity and accuracy, and the field testing of the nitrate sensor performed within tree nursery settings under ISO/IEC 17025 certifications. View Full-Text
Keywords: electrochemical impedance spectroscopy; nitrate sensor; microelectronics electrochemical impedance spectroscopy; nitrate sensor; microelectronics
Show Figures

Figure 1

MDPI and ACS Style

Ghaffari, S.A.; Caron, W.-O.; Loubier, M.; Normandeau, C.-O.; Viens, J.; Lamhamedi, M.S.; Gosselin, B.; Messaddeq, Y. Electrochemical Impedance Sensors for Monitoring Trace Amounts of NO3 in Selected Growing Media. Sensors 2015, 15, 17715-17727. https://doi.org/10.3390/s150717715

AMA Style

Ghaffari SA, Caron W-O, Loubier M, Normandeau C-O, Viens J, Lamhamedi MS, Gosselin B, Messaddeq Y. Electrochemical Impedance Sensors for Monitoring Trace Amounts of NO3 in Selected Growing Media. Sensors. 2015; 15(7):17715-17727. https://doi.org/10.3390/s150717715

Chicago/Turabian Style

Ghaffari, Seyed A.; Caron, William-O.; Loubier, Mathilde; Normandeau, Charles-O.; Viens, Jeff; Lamhamedi, Mohammed S.; Gosselin, Benoit; Messaddeq, Younes. 2015. "Electrochemical Impedance Sensors for Monitoring Trace Amounts of NO3 in Selected Growing Media" Sensors 15, no. 7: 17715-17727. https://doi.org/10.3390/s150717715

Find Other Styles

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Search more from Scilit
 
Search
Back to TopTop