Pembangunan sensor optik ph berasaskan reagen kurkumin terpegun dalam matriks hibrid sol-gel/kitosan melamin

Translated title of the contribution: Development of optical ph sensor based on curcumin reagent immobilized in sol-gel/chitosan melamine hybrid matrices

Rosmawani Mohammad, Musa Ahmad, Jamaluddin Mohd Daud

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

An optical pH sensor has been developed using curcumin reagent immobilized in sol-gel/chitosan-melamine hybrid matrices. The optical pH sensor gave a linear response at range of pH 9-13 (R2 = 0.9846. Relative standard deviation (RSD) values of reproducibility were 738% - 9.65%, while RSD values of repeatability were 2.18% - 4.72%. Good photostability was obtained for immobilized curcumin reagent when the films were kept in dark surrounding with RSD value 3.69% for 3 weeks. No hysteresis effect was observed when the sensor was used to measure pH in cycle from pH 2-12-2. The response time of the sensor was within 10-20 seconds. Determination of pH value in real samples by using pH sensor developed in this study showed no significance differences when compared with results obtained by using conventional pH meter.

Original languageUndefined/Unknown
Pages (from-to)413-418
Number of pages6
JournalSains Malaysiana
Volume38
Issue number3
Publication statusPublished - Jun 2009

Fingerprint

pH sensors
Curcumin
Optical sensors
Chitosan
Sol-gels
pH meters
Sensors
Hysteresis
melamine

Keywords

  • Curcumin
  • Hybrid sol-gel/chitosan-melamine
  • Optical ph sensor

ASJC Scopus subject areas

  • General

Cite this

Pembangunan sensor optik ph berasaskan reagen kurkumin terpegun dalam matriks hibrid sol-gel/kitosan melamin. / Mohammad, Rosmawani; Ahmad, Musa; Daud, Jamaluddin Mohd.

In: Sains Malaysiana, Vol. 38, No. 3, 06.2009, p. 413-418.

Research output: Contribution to journalArticle

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