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  1. Home
  2. Staff Publications
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  4. Highly sensitive fluorescence optode for aluminium(III) based on non-plasticized polymer inclusion membrane
 
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Highly sensitive fluorescence optode for aluminium(III) based on non-plasticized polymer inclusion membrane

Journal
Sensors and Actuators, B: Chemical
Date Issued
2014
Author(s)
Suah F.B.M.
Ahmad M.
Heng L.Y.
DOI
10.1016/j.snb.2014.04.081
Abstract
A highly sensitive and simple reagent immobilization procedure for a non-plasticized fluorescence optode based on polymer inclusion membranes (PIM) has been developed. The preparation procedure is based on physical immobilization procedure, namely encapsulation technique which produces an optical sensing membrane. The sensitive PIM contains poly (vinyl chloride) (PVC) as the base polymer, Aliquat 336 as an extractant and sodium morin-5-sulphonate (NaMSA) as the reagent. The use of PIM has increased the response of the PIM based optode about five-fold enhancement compared to the non-PIM optode. The optimized optode was characterized by a linear calibration curve in the range from 5.19 � 10-7 to 6.00 � 10-5 mol L -1 of aluminium(III) (Al(III)), with a detection limit of 4.07 � 10-7 mol L-1. The response of the optode was three minutes and it was also found to be reproducible. The optode has been successfully tested for the determination of Al(III) in natural water samples and result obtained is comparable to atomic absorption spectrometry method. � 2014 Elsevier B.V.
Subjects

Aliquat 336

Aluminium(III) determ...

NaMSA

Optical sensor

Polymer inclusion mem...

Sodium morin-5-sulpho...

Aluminum

Atomic absorption spe...

Chlorine compounds

Fluorescence

Hydrophobicity

Optical sensors

Polyvinyl chlorides

Sodium

Aliquat-336

Detection limits

Linear calibration cu...

NaMSA

Natural water samples...

Optical sensing

Polymer inclusion mem...

Preparation procedure...

Polymers

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