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Résultats de la recherche - 48 results
Determinants of persistent organic pollutant (POP) concentrations in human breast milk of a cross-sectional sample of primiparous mothers in Belgium
HCH) and two brominated flame retardant congeners (BDE-47, BDE-153) were detected at concentrations above the limit of quantification in >50% of the breast milk samples. Maternal age and BMI were ...
Validation of single particle ICP-MS for routine sizing and quantification of the fraction of silver nanoparticles in E174 food addititves and confectionery products
a relatively low number of nanoparticles, making the quantification of the nanoparticles more challenging than in the products containing E174. Validation of the method showed good performance with respect for ...
Determination of endocrine disrupting compounds in human placenta by UPLCESI-MS/MS
quantified in human placenta samples The major compounds found were parabens and bisphenols Highest concentration levels for methyl- and propylparaben and highest quantification frequency for octylphenol ...
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 ...
Development of a sample preparation method for the GC-analysis of e-cigarette refill liquids
techniques can also be used with other GC-injection techniques. Both methodologies were further optimized and validated for quantification of the target components using matrix-matched calibration The sample ...
Développement et mise au point d'une méthode de quantification par LC-MS/MS de la ricinine et de la L-abrine dans des matrices biologiques
Publication Type: Dissertation Authors: S Nganzeu Source: HE Francisco Ferrer (2019) Service: Contaminants organiques et additifs Organische contaminanten en additieven Organic contaminants and additives Full text language: French Category: D2 FOS Clas ...
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 ...
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 ...