Multi-residue screening of endocrine disrupters chemicals in water samples by stir bar sorptive extraction-liquid desorption-capillary gas chromatography–mass spectrometry detection
The powerful capabilities of the stir bar sorptive extraction followed liquid desorption in combination with large volume injection and capillary gas chromatography coupled to mass spectrometry, were successfully applied to screen more than 60 endocrine disrupters chemicals, including herbicides, or...
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Veröffentlicht in: | Analytica chimica acta 2004-07, Vol.517 (1), p.21-32 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The powerful capabilities of the stir bar sorptive extraction followed liquid desorption in combination with large volume injection and capillary gas chromatography coupled to mass spectrometry, were successfully applied to screen more than 60 endocrine disrupters chemicals, including herbicides, organochlorine and organophosphorous pesticides, polycyclic aromatic hydrocarbons, polychlorinated biphenyls, biocides, phthalates and alkylphenols in water samples at the ultra-trace level.
During method development, it has been established that stir bars coated with 47
μL of polydimethylsiloxane, a standard equilibrium time of 60
min (750
rpm) at room temperature (20
°C) and acetonitrile as back extraction solvent, promote good performance to monitor endocrine disrupters chemicals in water samples. Assays on 30
mL laboratory-spiked water samples having a minimum of 5% of methanol, allowed high sensitivity and remarkable reproducibility ( |
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ISSN: | 0003-2670 1873-4324 |
DOI: | 10.1016/j.aca.2004.04.045 |