Résultats de la recherche - 67 results
Spectroscopic approaches for conformity analysis of e-liquids
from, as well as the presentation as “the healthier option” and cost-effectiveness, it’s no wonder that e-liquids have become increasingly popular in the last 20 years, particularly with younger people. ...
Implementation of MALDI-TOF Mass Spectrometry to Identify Fungi From the Indoor Environment as an Added Value to the Classical Morphology-Based Identification Tool
effects. The genera Aspergillus, Cladosporium, Penicillium, Alternaria, and yeasts, the most common fungi found indoors, include species with high allergenic and toxigenic potentials. Identification of these ...
Towards a Better Quantification of Cyanotoxins in Fruits and Vegetables: Validation and Application of an UHPLC-MS/MS-Based Method on Belgian Products
The validation of a UHPLC- MS / MS method in the strawberry matrix is novel. Matrix effects are observed in all three matrices. Our methodology uses matrix-matched calibration curves to compensate for ...
Use of near infrared spectroscopy and chemometrics for the classification of different Cannabis spp. samples found in Belgium
generally a concentration of Δ9- THC up to 15 % (m/m) [1,2]. Δ9-tetrahydrocannabinol is one of the main cannabinoids responsible for the psychotropic effects and the Belgian law authorizes a maximal ...
Development, Validation and Application of a Targeted LC-MS Method for Quantification of Microcystins and Nodularin: Towards a Better Characterization of Drinking Water
Keywords: liquid chromatography Mass Spectrometry matrix effect Method validation microcystin WATER Abstract: Water availability and quality are two crucial factors contributing to a healthy and ...
Development, validation and application of multi-class methods for the analysis of food additives by liquid chromatography coupled to tandem mass spectrometry
sweeteners, preservatives, and antioxidants in various foods (e.g. beverages, dairies, processed meals). The methods were also validated in terms of selectivity, linearity, matrix effect, limit of ...
Development of a “Freeze-Pour” Sample Preparation Method for the GC Analysis of Semivolatile Flavouring Chemicals Present in E-cigarette Refill Liquids
However, one of the challenges encountered during the analysis of e-liquids is the presence of the highly abundant e-liquid matrix components propylene glycol and glycerol. In this study, headspace gas ...
CBD oils on the Belgian market: A validated MRM GC-MS/MS method for routine quality control using QuEChERS sample clean up
however, encountered for routine analyses due to the matrix complexity, high cost of cannabinoid standards and low Δ9- THC concentrations. An oily matrix could cause technical damages to analytical ...
DETERMINATION OF SENSITIZING AND IRRITATING LEACHABLES IN MENSTRUAL HYGIENE PRODUCTS
time of 12 minutes was developed and optimized for both identification and quantification of the leachables. Matrix effects were corrected by using matrix-matched calibration and methyl cinnamate was ...
Simultaneous determination of parabens, bisphenols and alkylphenols in human placenta by ultra-high performance liquid chromatography-tandem mass spectrometry
negative electrospray ionization. Labeled internal standards and matrix-matched calibration are used for quantification of the compounds. The method was validated according FDA guideline for bio analytical ...