Search results - 200 results
CBD oils on the Belgian market: A validated MRM GC-MS/MS method for routine quality control using QuEChERS sample clean up
content by a CBN standard and the screening of seven other cannabinoids namely CBN, CBDV, CBT, CBC, Δ8- THC, THCV and CBG. The method was validated at three concentration levels (0.5–1–2% (w/v)) for CBD and ...
Retrospective survey of unauthorized genetically modified bacteria harbouring antimicrobial resistance genes in feed additive vitamin B2 commercialized in Belgium: Challenges and solutions
allowing to provide a first picture of GM bacterial contaminations. It consisted in a first-line screening strategy gathering available PCR-based methods targeting both the B. subtilis species, frequently ...
Chemical and toxciological characterization of e-liquid cigarettes
methods were developed for the quantitative determination of nicotine and its related impurities (HPLC- DAD) and for the flavours diacetyl and acetylpropionyl (HS / GC- MS). Also, screening methods were ...
Phytochemical screening, antioxidant, anticoagulant and in vitro toxic and genotoxic properties of aerial parts extracts of Fumaria officinalis L. growing in Tunisia
using standard methods. Antioxidant activity was evaluated by DPPH and ABTS methods. The anticoagulant activity was evaluated by prothrombin time (PT) and activated partial thromboplastin time (aPTT) ...
Molecular surveillance of anti-malarial drug resistance in Democratic Republic of Congo: high variability of chloroquinoresistance and lack of amodiaquinoresistance.
Preschool Chloroquine Democratic Republic of the Congo Dried Blood Spot Testing Drug Resistance Humans Infant Infant, Newborn Malaria, Falciparum Mass Screening Membrane Transport Proteins middle aged ...
Investigation of migrating substances from textile used as food contact material
screening method and targeted quantitative assays were used to determine the levels of substances migrating from food fabrics. These protocols were carried out for 43 food fabrics carefully selected on the ...
Characterization and hazard identification of substandard and falsified antimicrobials encountered in Belgium
spectrometry (UHPLC- MS2) screening method is presented, taking only 15 minutes, for the identification of 36 different antimicrobials and 1 beta-lactamase inhibitor. Furthermore, upon identification, ...
Development of a sample preparation method for the GC-analysis of e-cigarette refill liquids
used in e-cigarettes using GC-method with an appropriate sample preparation. The group of flavourings are divided in two groups: high and low semi-volatiles. High volatile flavouring group contains the ...
A simple dilute-and-shoot method for screening and simultaneous quantification of nicotine and alkaloid impurities in electronic cigarette refills (e-liquids) by UHPLC-DAD
(e-liquids). Currently, the most important quality indicator of e-liquid products is the quantification of nicotine and its related impurities. Although different methods have been published to measure nicotine ...
Development and validation of chromatographic methods for screening and subsequent quantification of suspected illegal antimicrobial drugs encountered on the Belgian market.
a screening and a quantification method using ultra-high performance liquid chromatography with tandem mass spectrometry (UHPLC- MS) and diode array detection (UHPLC- DAD), respectively were developed and ...