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Analysis of off-flavors in the aquatic environment by stir bar sorptive extraction-thermal desorption-capillary GC/MS/olfactometry

Benanou, D ; Acobas, F ; de Roubin, M R ; David, F ; Sandra, P

Analytical and bioanalytical chemistry, 2003-05, Vol.376 (1), p.69-77 [Revista revisada por pares]

Germany

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Analysis of off-flavors in the aquatic environment by stir bar sorptive extraction-thermal desorption-capillary GC/MS/olfactometry
Autor: Benanou, D ; Acobas, F ; de Roubin, M R ; David, F ; Sandra, P
Materias: Anisoles - analysis ; Bornanes - analysis ; Calibration ; Gas Chromatography-Mass Spectrometry - methods ; Naphthols - analysis ; Odorants - analysis ; Reproducibility of Results ; Sensitivity and Specificity ; Taste ; Water Pollutants, Chemical - analysis ; Water Supply
Es parte de: Analytical and bioanalytical chemistry, 2003-05, Vol.376 (1), p.69-77
Descripción: The off-flavor compounds 2-methylisoborneol (MIB), geosmin, 2,4,6-trichloroanisole, 2,3,6-trichloroanisole, 2,3,4-trichloroanisole, and 2,4,6-tribromoanisole were analyzed in water samples by stir bar sorptive extraction (SBSE) followed by on-line thermal desorption (TD) capillary GC/MS. Quantification was performed using the MS in the single-ion-monitoring mode (SIM) with 2,4,6-trichloroanisole-D(5 )as internal standard. Quantification limits are 0.1-0.2 ng L(-1) for the haloanisoles, 0.5 ng L(-1) for geosmin, and 1 ng L(-1) for MIB. The relative standard deviations at the quantification limit ranged from 7 to 14.6%. SBSE recovery was evaluated by spiking real water samples and varied from 87 to 117%. More than twenty samples per day can be analyzed by SBSE-TD-capillary GC-MS. The same technique in combination with olfactometry was used to elucidate unknown odorous compounds in water samples.
Editor: Germany
Idioma: Inglés

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Analysis of off-flavors in the aquatic environment by stir bar sorptive extraction-thermal desorption-capillary GC/MS/olfactometry

Benanou, D ; Acobas, F ; de Roubin, M R ; David, F ; Sandra, P

Germany

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