A novel polymer inclusion membranes based optode for sensitive determination of Al3+ ions

Faiz Bukhari Mohd Suah, Musa Ahmad, Yook Heng Lee

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A novel approach for the determination of Al3+ from aqueous samples was developed using an optode membrane produced by physical inclusion of Al3+ selective reagent, which is morin into a plasticized poly(vinyl chloride). The inclusion of Triton X-100 was found to be valuable and useful for enhancing the sorption of Al3+ ions from liquid phase into the membrane phase, thus increasing the intensity of optode's absorption. The optode showed a linear increase in the absorbance at λmax = 425 nm over the concentration range of 1.85 × 10-6-1.1 × 10-4 mol L-1 (0.05-3 μg mL-1) of Al3+ ions in aqueous solution after 5 min. The limit of detection was determined to be 1.04 × 10-6 mol L-1 (0.028 μg mL-1). The optode developed in the present work was easily prepared and found to be stable, has good mechanical strength, sensitive and reusable. In addition, the optode was tested for Al3+ determination in lake water, river water and pharmaceutical samples, which the result was satisfactory.

Original languageEnglish
Pages (from-to)81-87
Number of pages7
JournalSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume144
DOIs
Publication statusPublished - 5 Jun 2015

Fingerprint

Polymers
inclusions
Ions
membranes
Membranes
Vinyl Chloride
Water
Octoxynol
polymers
lakes
Drug products
rivers
sorption
water
Strength of materials
reagents
Lakes
Sorption
ions
liquid phases

Keywords

  • Al determination
  • Morin
  • Optode
  • Polymer inclusion membrane
  • Triton
  • X-100

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics
  • Analytical Chemistry
  • Spectroscopy

Cite this

A novel polymer inclusion membranes based optode for sensitive determination of Al3+ ions. / Suah, Faiz Bukhari Mohd; Ahmad, Musa; Lee, Yook Heng.

In: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Vol. 144, 05.06.2015, p. 81-87.

Research output: Contribution to journalArticle

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