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Résultats de la recherche - 10 results
Spectroscopic approaches for conformity analysis of e-liquids
squares-discriminant analysis (PLS- DA) and soft independent modelling by class analogy (SIMCA), was used to classify samples according to the presence of nicotine and/or the targeted additives. The results allowed to ...
Chromatographic impurity fingerprinting of genuine and counterfeit Cialis® as a means to compare the discriminating ability of PDA and MS detection.
supervised Partial Least Squares and its discriminant variant (PLS, PLS- DA) as well the classification methods including Soft Independent Modelling of Class Analogy (SIMCA) and the k Nearest Neighbour ...
The Monte Carlo validation framework for the discriminant partial least squares model extended with variable selection methods applied to authenticity studies of Viagra® based on chromatographic impurity profiles.
Counterfeit Drugs Discriminant Analysis Least-Squares Analysis Monte Carlo Method Sildenafil Citrate Abstract: The aim of this work was to develop a general framework for the validation of discriminant models ...
Testing of complementarity of PDA and MS detectors using chromatographic fingerprinting of genuine and counterfeit samples containing sildenafil citrate.
several genuines and generics are classified as counterfeits and vice versa. However, when analyzing the MS1_MS2 data in combination with partial least squares-discriminant analysis (PLS- DA), a perfect ...
Detection of sibutramine in adulterated dietary supplements using attenuated total reflectance-infrared spectroscopy.
p.279-283 (2014) Keywords: Appetite Depressants Cyclobutanes Decision Trees Dietary Supplements Drug Contamination False Positive Reactions Least-Squares Analysis Principal Component Analysis Reproducibility ...
Chemometrics and chromatographic fingerprints to discriminate and classify counterfeit medicines containing PDE-5 inhibitors.
Analysis Counterfeit Drugs Informatics Least-Squares Analysis Phosphodiesterase 5 Inhibitors Principal Component Analysis Support Vector Machine Abstract: Chromatographic fingerprints recorded for a set of ...
Impurity fingerprints for the identification of counterfeit medicines--a feasibility study.
Feasibility Studies Least-Squares Analysis Piperazines Principal Component Analysis Purines Sildenafil Citrate Spectrophotometry, Ultraviolet Sulfones Tablets Tadalafil Abstract: Most of the counterfeit ...
Comparison and combination of spectroscopic techniques for the detection of counterfeit medicines.
Jacques O Source: J Pharm Biomed Anal, Volume 53, Issue 3, p.445-53 (2010) Keywords: Carbolines Least-Squares Analysis Phosphodiesterase Inhibitors Piperazines Principal Component Analysis Purines ...
Physical profiling and IR spectroscopy: simple and effective methods to discriminate between genuine and counterfeit samples of Viagra® and Cialis®.
Drug Test Anal, Volume 8, Issue 3-4, p.378-87 (2016) Keywords: Counterfeit Drugs Drug Packaging Least-Squares Analysis Principal Component Analysis Reproducibility of Results Sildenafil Citrate ...
Spectroscopy and Chemometrics for Conformity Analysis of e-Liquids: Illegal Additive Detection and Nicotine Characterization
carefully selected for analysis. Chemometric analysis was applied to the collected data, which included mid-infrared (MIR) and near-infrared (NIR) spectra. Supervised modeling approaches such as partial least ...