Ammonium ion sensor based on photocured and self-plasticising acrylic films for the analysis of sewage

Yook Heng Lee, Sagir Alva, Musa Ahmad

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Solid-state ammonium ion sensors based on photocured poly(n-butyl acrylate) membrane with immobilised nonactin is successfully used for the determination of ammonium ion. The sensor membrane does not require any plasticiser and gives Nernstian response (57-58mV per decade) throughout the ammonium ion concentration range of 10-1 to 10-5M with detection limits approaching 10-6M ammonium ion. The sensor also demonstrates good reproducibility (R.S.D. 2-4%, n=15) and satisfactory selectivity with improved selectivity coefficients for sodium, lithium, calcium and magnesium over other ammonium sensors fabricated by similar photocuring technique. The ammonium ion sensor has potential application in the analysis of ammonium and ammonia in sewage samples.

Original languageEnglish
Pages (from-to)160-165
Number of pages6
JournalSensors and Actuators, B: Chemical
Volume98
Issue number2-3
DOIs
Publication statusPublished - 15 Mar 2004

Fingerprint

sewage
Sewage
Ammonium Compounds
Acrylics
Ions
sensors
Sensors
ions
selectivity
membranes
Membranes
plasticizers
Plasticizers
acrylates
ion concentration
Magnesium
magnesium
calcium
ammonia
Calcium

Keywords

  • Ammonium ion sensor
  • Photocure
  • Poly(butyl acrylate) membrane
  • Self-plasticising
  • Sewage

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

Ammonium ion sensor based on photocured and self-plasticising acrylic films for the analysis of sewage. / Lee, Yook Heng; Alva, Sagir; Ahmad, Musa.

In: Sensors and Actuators, B: Chemical, Vol. 98, No. 2-3, 15.03.2004, p. 160-165.

Research output: Contribution to journalArticle

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