Résultats de la recherche - 24 results
COMBINATION OF CHEMOMETRICS AND MULTIDIMENSIONAL FINGERPRINTING FOR DETECTION OF REGULATED PLANTS IN PLANT FOOD SUPPLEMENTS
method was developed using ultra-high performance liquid chromatography with diode array detector (DAD). Furthermore, selection of orthogonal wavelengths was made to extract maximum information from the ...
Multidimensional Chromatographic Fingerprinting Combined with Chemometrics for the Identification of Regulated Plants in Suspicious Plant Food Supplements.
were recorded using ultra-high-performance liquid chromatography (UHPLC) coupled with diode array detection (DAD). Chemometric modelling was performed by partial least squares-discriminant analysis (PLS- ...
Challenges in Drug Surveillance: Strengthening the Analysis of New Psychoactive Substances by Harmonizing Drug Checking Services in Proficiency Testing.
chromatography-mass spectrometry (GC- MS) and liquid chromatography with diode array detector (LC- DAD). RESULTS: The proficiency test scores range from 80 to 97.5% accuracy. The most common issues and errors are ...
Response to letter to the editor: “Comments on ‘discrepancies between validated GC‐FID and UHPLC‐DAD methods for the analysis of Δ‐9‐THC and CBD in dried hemp flowers’”
Publication Type: Peer reviewed scientific article Authors: Eric Deconinck; Michaël Canfyn; Céline Duchateau; De Braekeleer, Kris Source: Drug Testing and Analysis, Volume 15, Issue 2 (2023) Keywords: CBD delta-9-THC dried hemp flowers Health Topics: Eff ...
Discrepancies between validated GC‐FID and UHPLC‐DAD methods for the analysis of Δ‐9‐THC and CBD in dried hemp flowers
Analysis, Volume 14, Issue 10 (2022) Keywords: agricultural hemp GC-FID herbal product for smoking UHPLC-DAD Health Topics: Effectiveness and safety of vaccines, medicines and health products- Quality of ...
CHROMATOGRAPHIC FINGERPRINT DEVELOPMENT FOR THE DETECTION OF TRIBULUS TERRESTRIS IN PLANT FOOD SUPPLEMENTS
Publication Type: Dissertation Authors: Sano-Magnifique Dusingizimana; Surbhi Ranjan; Eric Deconinck Source: VUB, Brussels, Belgium, p.251 (2022) Keywords: chromatographic fingerprinting DAD ED ...
Relative response factors and multiple regression models in liquid chromatography to quantify low-dosed components using alternative standards-proof of concept: total Δ9-THC content in cannabis flowers using CBD as reference.
classical RRF s often fail in lower concentration ranges. For this purpose, the determination of the total Δ9-tetrahydrocannabinol (Δ9- THC + Δ9- THC-A) content in dried cannabis flowers, using UHPLC- DAD ...
Use of near infrared spectroscopy and chemometrics for the classification of different Cannabis spp. samples found in Belgium
and HPLC- DAD [4]. These methods are very efficient but slow, expensive and require a thorough sample preparation. Furthermore, they require trained personnel, and aren’t ecological [4,5] and they are ...
Contents of Amoxicillin Drugs Dispensed in Goma, Democratic Republic of Congo
High Performance Liquid Chromatography coupled with tandem mass spectrophotometry (UHPLC- MS / MS) and diode array detection (UHPLC- DAD). Nine of the 24 samples fulfilled the WHO criteria of counterfeit ...
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 ...