Application of Dispersive Liquid-Liquid Microextraction Followed by High-Performance Liquid Chromatography/Tandem Mass Spectrometry Analysis to Determine Tetrabromobisphenol A in Complex Matrices.

Autor: Macêdo WV; Biological Processes Laboratory, São Carlos School of Engineering, University of São Paulo, Santa Angelina, São Carlos, São Paulo, Brazil., Bernegossi AC; Aquatic Ecology Laboratory, Department of Hydraulic Engineering and Sanitation, School of Engineering of São Carlos, University of São Paulo, São Carlos, São Paulo, Brazil., Sabatini CA; Biological Processes Laboratory, São Carlos School of Engineering, University of São Paulo, Santa Angelina, São Carlos, São Paulo, Brazil., Corbi JJ; Aquatic Ecology Laboratory, Department of Hydraulic Engineering and Sanitation, School of Engineering of São Carlos, University of São Paulo, São Carlos, São Paulo, Brazil., Zaiat M; Biological Processes Laboratory, São Carlos School of Engineering, University of São Paulo, Santa Angelina, São Carlos, São Paulo, Brazil.
Jazyk: angličtina
Zdroj: Environmental toxicology and chemistry [Environ Toxicol Chem] 2020 Nov; Vol. 39 (11), pp. 2147-2157. Date of Electronic Publication: 2020 Sep 16.
DOI: 10.1002/etc.4837
Abstrakt: An accurate and sensitive ultrasound-dispersive liquid-liquid microextraction technique followed by high-performance liquid chromatography separation coupled with electrospray ionization tandem mass spectrometry detection method to determine the presence of tetrabromobisphenol A (TBBPA) in complex environmental matrices is proposed. The miniaturized procedure was used to extract and quantify the analyte in domestic sewage, anaerobic sludge, and the aquatic test organism species Daphnia magna and Chironomus sancticaroli, which are standardized organisms for ecotoxicity bioassays. Limits of detection of 2 ng L -1 (domestic sewage), 2 ng g -1 (anaerobic sludge), 0.25 ng g -1 (D. magna), and 5 ng g -1 (C. tentans) were obtained. The presence of TBBPA was determined in domestic sewage and anaerobic sludge from an anaerobic batch bioreactor at a concentration of 0.2 ± 0.03 μg L -1 and 507 ± 79 ng g -1 , respectively. In D. magna and C. sancticaroli exposed to TBBPA in an acute toxicity bioassay, the micropollutant accumulated at 3.74 and 8.87 μg g -1 , respectively. The proposed method is a simple and cost-effective tool to determine TBBPA environmental occurrence and biomagnification potential compared with conventional extraction methods. To the best of our knowledge, this is the first liquid-liquid miniaturized extraction method to be applied to D. magna and C. sancticaroli. Environ Toxicol Chem 2020;39:2147-2157. © 2020 SETAC.
(© 2020 SETAC.)
Databáze: MEDLINE
Externí odkaz: