Analytical methodologies based on LC–MS/MS for monitoring selected emerging compounds in liquid and solid phases of the sewage sludge
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Otros documentos de la autoría: Boix Sales, Clara; Ibáñez, Maria; Fabregat-Safont, David; Morales, E.; Pastor, L.; Sancho, Juan V; Sánchez-Ramírez, J. E.; Hernandez, Felix
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Analytical methodologies based on LC–MS/MS for monitoring selected emerging compounds in liquid and solid phases of the sewage sludgeAutoría
Fecha de publicación
2016Editor
ElsevierISSN
2215-0161Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/article/pii/S2215016116300152Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
In this work, two analytical methodologies based on liquid chromatography coupled to tandem mass
spectrometry (LC–MS/MS) were developed for quantification of emerging pollutants identified in sewage sludge
after a ... [+]
In this work, two analytical methodologies based on liquid chromatography coupled to tandem mass
spectrometry (LC–MS/MS) were developed for quantification of emerging pollutants identified in sewage sludge
after a previous wide-scope screening. The target list included 13 emerging contaminants (EC): thiabendazole,
acesulfame, fenofibric acid, valsartan, irbesartan, salicylic acid, diclofenac, carbamazepine, 4-aminoantipyrine (4-
AA), 4-acetyl aminoantipyrine (4-AAA), 4-formyl aminoantipyrine (4-FAA), venlafaxine and benzoylecgonine. The
aqueous and solid phases of the sewage sludge were analyzed making use of Solid-Phase Extraction (SPE) and
UltraSonic Extraction (USE) for sample treatment, respectively. The methods were validated at three
concentration levels: 0.2, 2 and 20mg L 1 for the aqueous phase, and 50, 500 and 2000mg kg 1 for the solid
phase of the sludge. In general, the method was satisfactorily validated, showing good recoveries (70–120%) and
precision (RSD < 20%). Regarding the limit of quantification (LOQ), it was below 0.1mg L 1 in the aqueous phase
and below 50mg kg 1 in the solid phase for the majority of the analytes. The method applicability was tested by analysis of samples from a wider study on degradation of emerging pollutants in sewage sludge under anaerobic
digestion.
The key benefits of these methodologies are:
SPE and USE are appropriate sample procedures to extract selected emerging contaminants from the aqueous
phase of the sewage sludge and the solid residue.
LC–MS/MS is highly suitable for determining emerging contaminants in both sludge phases.
Up to our knowledge, the main metabolites of dipyrone had not been studied before in sewage sludge.
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Publicado en
MethodsX 3 (2016) 333–342Derechos de acceso
info:eu-repo/semantics/openAccess
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