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Presence and release of phthalic esters and other endocrine disrupting compounds in drinking water

AuthorsCasajuana, Neus; Lacorte Bruguera, Silvia CSIC ORCID
KeywordsGas chromatography—mass spectrometry
Solid-phase extraction
Endocrine disrupting compounds
Bottled water
Distribution water
Issue DateMay-2003
CitationChromatographia 57(9-10): 649-655 (2003)
AbstractAn analytical method was developed to analyze 5 phthalate esters (dimethylphthalate, diethylphthalate, di-n-butylphthalate, butylbenzylphthalate, di(2-ethylhexyl)phthalate), nonylphenol, bisphenol A and BADGE (Bisphenol A diglycyleter) in distribution and bottled water. They are all industrial chemicals used in the manufacture of epoxy resins or paints, polycarbonate and polyethylene plastics (global production of phthalates over 4 Mton/year) or surfactants and have been classified as persistent, with high migration potential from plastic containers and with endocrine disrupting properties. The present paper reports a specific extraction protocol using solid phase extraction with Oasis 60 mg or C18 cartridges, followed by gas chromalography coupled to mass spectrometric detection using an appropriate surrogate and internal standard for process control. Quality parameters are reported, making special emphasis to limits of detection, reproducibility and blank analysis, which permitted to detect ng L−1 concentrations. In an application step, the method was used to determine target compounds in 7 distribution water and 9 mineral water bottled in polyethylene, polyethyleneter phthalate and glass containers which were analysed upon purchase and after 10 week storage at temperatures up to 30 °C. Distribution water coming from different aquifers which at some point are in contact with plastic or painted concrete reservoirs and pipes, contained dimethylphthalate, diethylphtalate, nonylphenol, buthylbenzylphthtalate and DEHP at concentrations ranging from 0.005 to 0.331 μgL−1, depending on the sampled crea whereas bottled water showed levels up to 1.7 μg L−1 of some of the studied compounds, attributed to 10 week storage conditions.
Description7 pages, 3 figures, 4 tables.-- Available online Sep 21, 2006.
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Appears in Collections:(IDAEA) Artículos

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