A5022918477- Toxic Organic Pollutants Impact
- Mercury impact and mitigation studies
- Effects and risks of endocrine disrupting chemicals
- Per- and polyfluoroalkyl substances research
- Mass Spectrometry Techniques and Applications
- Atmospheric chemistry and aerosols
- Petroleum Processing and Analysis
- Air Quality and Health Impacts
- Environmental Toxicology and Ecotoxicology
- Microbial bioremediation and biosurfactants
- Aquaculture Nutrition and Growth
- Advanced Chemical Sensor Technologies
- Environmental remediation with nanomaterials
- Edible Oils Quality and Analysis
- Food Safety and Hygiene
- Agricultural safety and regulations
- Metabolomics and Mass Spectrometry Studies
- Water Treatment and Disinfection
- Pesticide Residue Analysis and Safety
- Carcinogens and Genotoxicity Assessment
Wageningen University & Research
2023-2024
Chemisches und Veterinäruntersuchungsamt Karlsruhe
2023
University of Hohenheim
2018-2021
Despite several decades of study, ambiguities persist in terms used to express environmental and biotic occurrences polychlorinated alkanes (PCAs), the main ingredient chlorinated paraffins (CPs). This can lead misinterpretation data between analytical chemists, toxicologists, risk assessors/managers regulators. The recommended here harmonise reporting reduce ambiguity use conventional definition PCAs - linear (typically, C≥10) with one chlorine per carbon, although some evidence multiple...
The current production and use of chlorinated paraffins (CPs) at >1 million tons/y likely exceeds the lifetime polychlorinated biphenyls (PCBs). These persistent organic pollutants (POPs) are a concern to human health.The United Nations Environment Programme conducts global surveys milk samples from individual countries as noninvasive method investigating levels trends in exposures POPs such CPs. We measured CP concentrations assessed their relation other pooled collected during 2012-2019.We...
The risk assessment of chlorinated paraffins (CPs), chemicals widespread industrial use, is struggling without standardized analytical methods to obtain reliable occurrence data. Indeed, scientists face challenges that hinder the comparability methods, among them uncontrolled ionization efficiency and lack quantification standards. In this study, our goal was investigate potential issues faced when comparing data from different mass spectrometry platforms methods. First, injection same set...
In response to the European Food Safety Authority's establishment of a tolerable weekly intake (TWI) for sum PFOA, PFNA, PFHxS, and PFOS, method was developed quantify confirm 20 PFASs at sub-parts-per-trillion level in fruit vegetables. Improved sensitivity achieved by (i) increasing sample intake, (ii) decreasing solvent volume final extract, (iii) using highly sensitive mass spectrometer. Except PFTrDA, target could be quantitatively determined with an apparent recovery 90–119%, limits...
The photolytic transformation of decabromodiphenyl ethane-a current-use brominated flame retardant and major substitute the structurally related ether-was investigated in different solvents (toluene, dichloromethane, chlorobenzene, benzyl alcohol). rate followed pseudo first order kinetics, with increasing half-life ( t1/2) toluene t1/2 = 4.6 min), chlorobenzene 14.0 dichloromethane 27.9 alcohol ≈ 60 min). Formation amount products varied depending on solvent used. A detailed study...
Chlorinated paraffins (CPs) are of growing public health concern because their ubiquitous presence in food samples. To get more insight into levels CPs vegetable oils from the Dutch market and human exposure via these oils, two series samples were analysed this study for by UHPLC coupled with Q-Exactive Orbitrap mass spectrometry: 1) 39 local supermarkets; 2) 13 paired crude refined obtained a contract refining company. Short chain (SCCPs) medium (MCCPs) detected supermarkets an overall...