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Study of cyanotoxin degradation and evaluation of their transformation products in surface waters by LC-QTOF MS
(Elsevier, 2019-08)
In the present work, the degradation of three cyanotoxins from the hepatotoxins group was investigated under laboratory-controlled experiments in water samples. Surface waters spiked with microcystin-LR (MC-LR), nodularin ...
Facilitating high resolution mass spectrometry data processing for screening of environmental water samples: An evaluation of two deconvolution tools
(Elsevier, 2016)
A screening approach was applied to influent and effluent wastewater samples. After injection in a LC-LTQ-Orbitrap, data analysis was performed using two deconvolution tools, MsXelerator (modules MPeaks and MS Compare) and ...
Re-certification of hydroxyvitamin D standards by isotope pattern deconvolution
(Elsevier, 2019-04-22)
Background
Vitamin D testing in analytical clinical laboratories has been experiencing a rapid increase of demand over the last years, as it plays a key role in several disorders. Due to the narrow ranges of medical ...
Investigating the appearance of new psychoactive substances in South Australia using wastewater and forensic data.
(Wiley, 2018-08-20)
New psychoactive substances (NPS) have increased in use and popularity worldwide. Wastewater analysis has been successfully applied to evaluate illicit drugs use within a population. However, for NPS, such an approach may ...
Identification of very long-chain (>C24) fatty acid methyl esters using gas chromatography coupled to quadrupole/time-of-flight mass spectrometry with atmospheric pressure chemical ionization source
(Elsevier, 2019-03-21)
Gas chromatography coupled to a quadrupole time-of-flight mass analyzer (QTOF) with an atmospheric pressure chemical ionization (APCI) source has been tested to study the ionization and mass spectrometric behavior of ...
Development and validation of a liquid chromatography isotope dilution mass spectrometry method for the reliable quantificationof alkylphenols in environmental water samples by isotopepattern deconvolution
(Copyright © 2015 Elsevier, 2014-02-07)
We present here a new measurement method for the rapid extraction and accurate quantification of technical nonylphenol (NP) and 4-t-octylphenol (OP) in complex matrix water samples by UHPLC-ESI-MS/MS. The extraction of ...
Identification of new omeprazole metabolites in wastewaters and surface waters
(Elsevier, 2014-01)
Omeprazole is one of the world-wide most consumed pharmaceuticals for treatment of gastric diseases. As opposed to other frequently used pharmaceuticals, omeprazole is scarcely detected in urban wastewaters and environmental ...
Spatial differences and temporal changes in illicit drug use in Europe quantified by wastewater analysis
(Wiley, 2014-08)
Aims To perform wastewater analyses to assess spatial differences and temporal changes of illicit drug use in a large
European population. Design Analyses of raw wastewater over a 1-week period in 2012 and 2013. Setting ...
Comparison of isotope pattern deconvolution and calibration curve quantification methods for the determination of estrone and 17β-estradiol in human serum
(Elsevier, 2019-04)
A Liquid Chromatography coupled to tandem mass spectrometry (LC–MS/MS) based method have been developed for the determination of the main estrogen compounds –estrone (E1) and 17β-estradiol (E2)– in human serum. Two isotope ...
Removal efficiency for emerging contaminants in a WWTP from Madrid (Spain) after secondary and tertiary treatment and environmental impact on the Manzanares River
(Elsevier B.V., 2021-12-22)
The effluents from wastewater treatment plants (WWTPs) can be an important contamination source for receiving waters. In this work, a comprehensive study on the impact of a WWTP from Madrid on the aquatic environment has ...