Development of electrochemical impedance spectroscopy based sensing system for DEHP detection

Asif I. Zia*, A. R. Mohd Syaifudin, S. C. Mukhopadhyay, I. H. Al-Bahadly, P. L. Yu, Chinthaka Gooneratne, Jürgen Kosel

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

19 Citations (Scopus)

Abstract

This research work presents a real time and non invasive technique to detect Di(2-ethylhexyl) phthalate (DEHP)content in purified water and quantify its concentration by Electrochemical Impedance Spectroscopy(E.I.S.). Planar Inter-digital capacitive sensor is employed to evaluate conductivity, permeability and dielectric properties of material under test. This sensor, consisting of inter-digitated microelectrodes, is fabricated on silicon substrate using thin-film Microelectromechanical system (MEMS) based semiconductor device fabrication technology. Impedance spectrums are obtained with various concentrations of DEHP in purified water by using an electric circuit in order to extract sample conductance. Relationship of sample conductance with DEHP concentration is studied in this research work which enables us to show the ability of E.I.S. to detect DEHP concentration in water and hence can be applied in water treatment process for contamination quantification.

Original languageEnglish
Title of host publication2011 5th International Conference on Sensing Technology, ICST 2011
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages666-674
Number of pages9
ISBN (Electronic)9781457701672, 9781457701665
ISBN (Print)9781457701689
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event2011 5th International Conference on Sensing Technology, ICST 2011 - Palmerston North, New Zealand
Duration: 28 Nov 20111 Dec 2011

Other

Other2011 5th International Conference on Sensing Technology, ICST 2011
CountryNew Zealand
CityPalmerston North
Period28/11/111/12/11

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Zia, A. I., Mohd Syaifudin, A. R., Mukhopadhyay, S. C., Al-Bahadly, I. H., Yu, P. L., Gooneratne, C., & Kosel, J. (2011). Development of electrochemical impedance spectroscopy based sensing system for DEHP detection. In 2011 5th International Conference on Sensing Technology, ICST 2011 (pp. 666-674). [6137066] Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ICSensT.2011.6137066