Development of solid phase micro extraction technique for determination of triazines in water samples using experimental design

Md. Pauzi Abdullah, Kamarruddin Asri, Mohamad Salleh Ramli, Maimunah Sulaiman Wahid, Wan Mohd Afiq Wan Mohd Khalik

Research output: Contribution to journalArticle

Abstract

A sensitive direct immersion solid phase microextraction technique coupled with gas chromatography-mass spectrometry (SPME-GCMS) was optimized and validated for analysis of triazines in drinking water. Preliminary evaluation of fibre materials indicated that carbowax-divinylbenzene was better than poly-dimethyl siloxane-divinylbenzene thus it was selected for further work. Variables namely extraction times, extraction temperature, ionic strength and stirring rate were screened and optimized using a two-level full factorial design and central composite design. The proposed optimized analytical procedures was obtained using sample volume (10 mL), extraction time (50 min), extraction temperature (50 °C), ionic strength (20 % NaCl), stirring rate (240 rpm) and pH (6.5). Desorption time and temperature were 5 min and 250 °C respectively. Recoveries were achieved in the range of 77 to 91.6 % at fortified concentration of 2 μg L-1. Linearity ranges from 0.02 to 10 μg L-1 (with r = 0.982 to 0.998). Detection and quantification limits were obtained in the range of 0.004 to 0.047 μg L-1 and 0.012 to 0.159 μg L-1 for all targeted compounds. An analysis of triazines in drinking water samples has managed to detect the presence of ametryn in the range of 0.026 to 0.240 μg L-1.

Original languageEnglish
Pages (from-to)562-566
Number of pages5
JournalAsian Journal of Chemistry
Volume28
Issue number3
DOIs
Publication statusPublished - 2016

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Triazines
divinyl benzene
Design of experiments
Water
Ionic strength
Drinking Water
Siloxanes
Gas chromatography
Temperature
Mass spectrometry
Desorption
Recovery
Fibers
Composite materials

Keywords

  • Drinking water analysis
  • Herbicides
  • Microextraction
  • Response surface

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Development of solid phase micro extraction technique for determination of triazines in water samples using experimental design. / Abdullah, Md. Pauzi; Asri, Kamarruddin; Ramli, Mohamad Salleh; Wahid, Maimunah Sulaiman; Khalik, Wan Mohd Afiq Wan Mohd.

In: Asian Journal of Chemistry, Vol. 28, No. 3, 2016, p. 562-566.

Research output: Contribution to journalArticle

Abdullah, Md. Pauzi ; Asri, Kamarruddin ; Ramli, Mohamad Salleh ; Wahid, Maimunah Sulaiman ; Khalik, Wan Mohd Afiq Wan Mohd. / Development of solid phase micro extraction technique for determination of triazines in water samples using experimental design. In: Asian Journal of Chemistry. 2016 ; Vol. 28, No. 3. pp. 562-566.
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