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Résultats de la recherche - 11 results
Multidimensional chromatographic fingerprinting combined with chemometrics for the identification of regulated plants in suspicious plant food supplements
× time points) were used for selection of orthogonal wavelengths by conducting a correlation analysis. After preparation of triturations, recording of the fingerprints and creation of datasets (corrected ...
From b to y ions, a decade of experience with peptide and protein analysis
substances. At the request of the FAMHP, unknown pharmaceutical preparations suspected to contain illegal protein and/or peptide drugs are regularly subjected to analysis by our OMCL laboratory. Here, we ...
Multidimensional Fingerprint Development for the Detection of Tribulus terrestris in Plant Food Supplements
5 orthogonal wavelengths were selected. The developed method was tested for specificity in different triturations (½0, 1/15, 1/10, ⅕ and ½). These were prepared using 10 blank matrices and lactose. In most ...
CHROMATOGRAPHIC FINGERPRINT DEVELOPMENT FOR THE DETECTION OF TRIBULUS TERRESTRIS IN PLANT FOOD SUPPLEMENTS
by preparing triturations of TT with herbal matrices in varying ratios (½, ⅕, 1/10, 1/15, ½0). Twenty unknown samples were screened for TT and further confirmation was carried out by UH ¨ PLC-mass ...
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.
a one-point calibration or a calibration line, prepared using a reference standard of the compound(s) of interest. However, in some cases, adequate reference standards may be very expensive, rare to obtain, or ...
Detection of regulated and prohibited plants in plant food supplements
presence of chemical adulterants like sibutramine and analogues in slimming preparations or sildenafil and analogues in potency enhancers. Other underestimated problems with these herbal preparations could ...
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 ...
The occurrence of putative cognitive enhancing research peptides in seized pharmaceutical preparations: An incentive for controlling agencies to prepare for future encounters of the kind.
2017 and 2018 two different unknown suspicious preparations were encountered and were subjected to a plethora of different analyses in order to identify, if present, any bioactive compound. It turned out ...
Falsification of biotechnology drugs: current dangers and/or future disasters?
falsified. The danger regarding the use of these falsified polypeptide drugs lies in the fact that end-users have no guarantee of the safety and efficacy of these preparations. Multiple reports have namely ...
Impurity profiling of the most frequently encountered falsified polypeptide drugs on the Belgian market
these falsified preparations are produced outside the legally required quality systems, end-users have no guarantee regarding the efficacy and safety of these products. Although falsified samples of ...