Search results - 11 results
Screening of plant food supplements for fraud concerning the presence of medicinal or regulated plants based on multi-dimensional chromatographic fingerprints
irregular sources 12 samples contained undeclared Ilex Paraguariensis and 4 Aristolochia Fanghi. These results show the feasibility of the approach, though modelling errors should be taken into account and ...
Simultaneous quantification of Ibuprofen and Paracetamol in combined tablet formulations by UV–VIS spectrophotometry and chemometric modelling
analyses, if an absence of signal interference between the component of interest and other matrix constituents is assured. However, chemometric modelling broadens the applicability of UV – VIS ...
Mass Spectrometric Fingerprinting to Detect Fraud and Herbal Adulteration in Plant Food Supplements
the application of compression techniques. After compression, Partial Least Squares-Discriminant Analysis (PLS- DA) was performed to generate models validated for accuracy using cross-validation and an ...
Screening the capability of vibrational spectroscopic techniques for simultaneous quantification of vitamins B1, B6, and B12 in a powder blend
coupled with multivariate modeling, enables many applica tions of these well-established analytical techniques, easy-to-use for rapid and non-destructive analysis. Owing to the lack of need for hazardous ...
Multidimensional chromatographic fingerprinting combined with chemometrics for the identification of regulated plants in suspicious plant food supplements
for shifts in retention times using correlation optimized warping), partial least squares – discriminant analysis was applied to construct classification models. Two approaches for modelling were ...
COMBINATION OF CHEMOMETRICS AND MULTIDIMENSIONAL FINGERPRINTING FOR DETECTION OF REGULATED PLANTS IN PLANT FOOD SUPPLEMENTS
fingerprints by performing a correlation analysis on the DAD data. Chemometric analysis was carried out using two approaches: 1. binary models for each plant separately and 2. multiclass models. The data were ...
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- ...
Multidimensional Fingerprint Development for the Detection of Tribulus terrestris in Plant Food Supplements
multidimensional data and extract maximum information with the intention to create binary models for faster screening of plant food supplements. Health Topics: Médicaments illégaux Illegal medicines Illegale ...
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.
performed a comparison of the use of RRF s and linear relative response factor models (LRRFM) for the quantification of targeted low-dosed compounds using an alternative standard, since it is known that ...
Use of near infrared spectroscopy and chemometrics for the classification of different Cannabis spp. samples found in Belgium
analysis (PCA) is applied as exploratory data analysis. Soft independent modelling of class analogy (SIMCA) was used to build a binary classification model according to the Belgian legislation. All ...