Characterization of contaminants present in sewage treatment plants, by liquid chromatography high resolution tandem mass spectrometry

Autor:	Robson José de Cássia Franco Afonso, Gustavo de Sousa Leite, Sergio Francisco de Aquino
Jazyk:	portugalština
Rok vydání:	2010
Předmět:	Chromatography business.industry Chemistry Electrospray ionization Sewage High resolution General Chemistry Mass spectrometry Tandem mass spectrometry organic micropolutants Sewage treatment Solid phase extraction business sewage treatment Semi quantitative mass spectrometry
Zdroj:	Química Nova v.33 n.3 2010 Química Nova Sociedade Brasileira de Química (SBQ) instacron:SBQ Repositório Institucional da UFOP Universidade Federal de Ouro Preto (UFOP) instacron:UFOP Química Nova, Volume: 33, Issue: 3, Pages: 734-738, Published: 2010
Popis:	This work shows results on the characterization, by liquid chromatography coupled to high resolution tandem mass spectrometry (LC-IT-TOF-MS) with electrospray ionization, of organic compounds present in raw and treated effluents from a combined sewage treatment systems (upflow anaerobic sludge blanket-trickling filter). The sewage samples were prepared by C18 solid phase extraction and the spectra obtained from the various extracts were submitted to principal component analysis to evaluate their pattern and identify the major deprotonated species. Some target compounds were submitted to semiquantitative analysis, using phenolphtalein as internal standard. The results showed the anaerobic step had little impact on the removal of anionic surfactants (LAS), fatty acids, and some contaminantes such as bisphenol A and bezafibrate, whereas the aerobic post-treatment was very efficient in removing these organics.
Databáze:	OpenAIRE
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