A micromachined electrochemical sensor for free chlorine monitoring in drinking water

A. Mehta, H. Shekhar, S. H. Hyun, Seungkwan Hong, H. Joe Cho

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In this work, we designed, fabricated and tested a disposable, flow-through amperometric sensor for free chlorine determination in water. The sensor is based on the principle of an electrochemical cell. The substrate, as well as the top microfluidic layer, is made up of a polymer material. The advantages include; (a) disposability from low cost; (b) stable operation range from three-electrode design; (c) fluidic interconnections that provide on line testing capabilities; and (d) transparent substrate which provides for future integration of on-chip optics. The sensor showed a good response and linearity in the chlorine concentration ranging from 0.3 to 1.6 ppm, which applies to common chlorination process for drinking water purification.

Original languageEnglish
Pages (from-to)403-410
Number of pages8
JournalWater Science and Technology
Volume53
Issue number4-5
DOIs
Publication statusPublished - 2006 May 25

Fingerprint

Electrochemical sensors
Chlorine
Potable water
Drinking Water
chlorine
Disposability
drinking water
Amperometric sensors
sensor
Microfluidics
Electrochemical cells
Monitoring
Water Purification
Chlorination
Halogenation
Sensors
Fluidics
Substrates
monitoring
Purification

Keywords

  • Chlorination
  • Drinking water
  • Electrochemical sensor
  • Microsensor

ASJC Scopus subject areas

  • Water Science and Technology

Cite this

A micromachined electrochemical sensor for free chlorine monitoring in drinking water. / Mehta, A.; Shekhar, H.; Hyun, S. H.; Hong, Seungkwan; Cho, H. Joe.

In: Water Science and Technology, Vol. 53, No. 4-5, 25.05.2006, p. 403-410.

Research output: Contribution to journalArticle

Mehta, A. ; Shekhar, H. ; Hyun, S. H. ; Hong, Seungkwan ; Cho, H. Joe. / A micromachined electrochemical sensor for free chlorine monitoring in drinking water. In: Water Science and Technology. 2006 ; Vol. 53, No. 4-5. pp. 403-410.
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