Simultaneous analysis of chlorophenols, alkylphenols, nitrophenols and cresols in wastewater effluents, using solid phase extraction and further determination by gas chromatography-tandem mass spectrometry
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Padilla Sánchez, Juan Antonio; Plaza Bolaños, Patricia; Romero González, Roberto; Barco Bonilla, Nieves; Martínez Vidal, José Luis; [et al.]Date
2011Abstract
An analytical methodology has been developed for the simultaneous extraction of 13 phenolic compounds, including chlorophenols (CPs), nitrophenols (NTPs), cresols and alkylphenols (APs) in different types of wastewater (WW) effluents. A solid-phase extraction (SPE) method has been optimized prior to the determination by gas chromatography coupled to triple quadrupole tandem mass spectrometry (GC-QqQ-MS/MS). Due to the complexity of the matrix, a comparison study of matrix-matched-calibration (MMC) and standard addition calibration (SAC) was carried out for quantification purposes. The optimized procedure was validated using the SAC approach since it provided the most adequate quantification results (in terms of recovery and precision values). Recoveries were in the range 60-135% (0.5 μg L-1), 70-115% (1 μg L -1), and 78-120% (5 μg L-1), with precision values (expressed as relative standard deviation, RSD) ≤30% (except for 2-nitrophenol) involving intra-day and inter-day precision studi...
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Phenols
Wastewater
Gas chromatography–mass spectrometry (GC–MS)
Standard addition calibration
Matrix-matched calibration