African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12151

Full Length Research Paper

Analysis of phthalate esters contamination in drinking water samples

W. Kanchanamayoon*, P. Prapatpong, S. Chumwangwapee and S. Chaithongrat
Department of Chemistry and Center of Excellence for Innovation in Chemistry(PERCH-CIC), Faculty of Science, Mahasarakham University, MahaSarakham, 44150 Thailand.
Email: [email protected]

  •  Accepted: 12 September 2012
  •  Published: 29 November 2012

Abstract

Phthalate esters are widely used as plasticizer. They can migrate from plastic materials to the environment. Exposure to some of these compounds may increase the risk of getting cancer. Phthalate esters: dimethyl phthalate (DMP), diethyl phthalate (DEP), dibutyl phthalate (DBP) and bis(2-ethylhexyl) phthalate (DEHP) were extracted simultaneously using a solid-phase extraction and compared with liquid-liquid extraction and analyzed by a gas chromatograph. The optimum condition method was successfully applied to the analysis of phthalate esters contamination in bottled drinking water samples. The concentration of DMP, DEP and DBP in drinking water samples were below allowable levels, while the DEHP concentration in three samples was found to be greater than the regulatory, maximum admissible concentration.

Key words: Phthalate esters, drinking water, sample extraction, gas chromatography

Abbreviation

Abbreviations: PVC, Polyvinyl chloride; DBP, dibutyl phthalate; DMP, dimethyl phthalate; DEP, diethyl phthalate; DEHP, bis(2-ethylhexyl phthalate; MAC, maximum admissible concentration; MCL, maximum contamination level; PET, polyethylene terephthalate; PE, polyethylene.

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