Simultaneous determination of synthetic musks and UV-filters in water matrices by dispersive liquid-liquid microextraction followed by gas chromatography tandem mass-spectrometry.

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ID: 109813
2019
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Abstract
An analytical method was developed for the simultaneous analysis of 19 emergent compounds in water matrices, six UV-filters (UVFs), five nitro, six polycyclic and two macrocyclic musks. The target compounds were extracted by a dispersive liquid-liquid microextraction (DLLME) approach, using 2-propanol as the dispersive solvent and 1,1,2-trichloroethane as the extractant solvent. The extracts were then analysed by gas chromatography tandem mass-spectrometry (GC-MS/MS). This methodology was successfully validated for the analyses of the target compounds in five types of aqueous samples (tap, river and sea water and influent and effluent wastewater). Recoveries of the analytes based on the surrogate correction ranged from 80 to 120%, with a good repeatability (relative standard deviations less than 10%). The method limit of detection ranges from 0.1 ng L (octocrylene (OC), celestolide (ADBI)) to 20.0 ng L (benzophenone (BZ)). Both UVFs and synthetic musk compounds (SMCs) were detected in all matrices. Higher concentrations were found in wastewaters (total mean concentration in influents of 6248 ng L and 3856 ng L in effluents), followed by river water (159 ng L). Only BZ was detected in one of the analysed seawater samples and none of the compounds were detected in tap water. The most detected UVFs among all matrices were BZ and drometrizole (DTS) and tonalide (AHTN) and galaxolide (HHCB) within the SMCs class. Among all matrices, wastewater was the one with higher number of compounds found per sample (both UVFs and SMCs).
Reference Key
ramos2019simultaneousjournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ramos, Sara;Homem, Vera;Santos, Lúcia;
Journal journal of chromatography a
Year 2019
DOI
S0021-9673(19)30013-5
URL
Keywords
dispersive liquid-liquid microextraction gc–ms/ms aqueous matrices synthetic musk compounds uv-filters

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