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Résultats de la recherche - 187 results

All in one method for the analysis of multiclass food additives using UHPLC-MS/MS

results will show the recoveries obtained for each group of FA s associated with the limit of detection for the non-authorized compounds and the limit of quantification for the FA s. Feasibility of this ...

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 ...

Characterization and hazard identification of substandard and falsified antimicrobials encountered in Belgium

quantification of active pharmaceutical ingredients (API s) potentially present in these suspicious SF antimicrobials, are paramount. Here, a validated ultra-high performance liquid chromatography-tandem mass ...

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 ...

Comparative dissolution study on substandard and falsified antibiotics encountered in Belgium

resistance and drug side effects [1]. In general, the evaluation of SF antimicrobials mainly focuses on the identification and quantification of the active pharmaceutical ingredients (API s), ignoring other ...

Modular Method for the Determination of Polycyclic Aromatic Hydrocarbons in Spices and Dried Herbs by Gas Chromatography–Tandem Mass Spectrometry

Keywords: Dried herbs gas chromatography Mass Spectrometry PAHs Spices Abstract: This paper describes a method for quantification of the four regulated polycyclic aromatic hydrocarbons (PAH ...

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 ...

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