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Zoekresultaten - 25 results
Analysis of illegal peptide drugs via HILIC-DAD-MS.
been developed to detect and quantify these peptides. The emerging of more polar peptides however requires the introduction of other separation techniques. Therefore, we set out to develop and validate ...
Chemometrics and chromatographic fingerprints to classify plant food supplements according to the content of regulated plants.
targeted plants and chemometric classification techniques in order to extract the important information from the fingerprints and determine the presence of the targeted plants in plant food supplements in an ...
Detection of regulated herbs and plants in plant food supplements and traditional medicines using infrared spectroscopy.
a series of self-made triturations of the targeted plants. After pretreatment of the spectral data chemometric classification techniques were applied to both data sets (IR and NIR) separately and the ...
Zona pellucida gene mRNA expression in human oocytes is related to oocyte maturity, zona inner layer retardance and fertilization competence.
changes and intrinsic oocyte competence were successfully documented. As such PLM and CC gene expression are confirmed as valuable noninvasive techniques to evaluate oocyte competence. STUDY FUNDING ...
Chemometrics and the identification of counterfeit medicines-A review.
Techniques, Analytical Cluster Analysis Counterfeit Drugs Discriminant Analysis Drug Contamination Models, Theoretical Pattern Recognition, Automated Abstract: This review article provides readers with a number ...
Chromatographic impurity fingerprinting of genuine and counterfeit Cialis® as a means to compare the discriminating ability of PDA and MS detection.
variation, is analysed more sophisticated techniques such as MS might be necessary. Health Topics: Effectiveness and safety of vaccines, medicines and health products- Quality of medical laboratories ...
In vitro Dermal Absorption of Hydroquinone: Protocol Validation and Applicability on Illegal Skin-Whitening Cosmetics.
Source: Skin Pharmacol Physiol, Volume 29, Issue 6, p.300-308 (2016) Keywords: Adult Drug and Narcotic Control Female Humans Hydroquinones In Vitro Techniques Male middle aged Reproducibility of Results ...
Discriminating nicotine and non-nicotine containing e-liquids using infrared spectroscopy.
combined with the appropriate chemometric techniques. The presented techniques do not need sample preparation and result in models with a minimum of false negative samples. If a large enough training set can ...
Testing of complementarity of PDA and MS detectors using chromatographic fingerprinting of genuine and counterfeit samples containing sildenafil citrate.
aiming to test whether PDA and MS are complementary detection techniques. The MS data comprise both MS1 and MS2 fingerprints; the PDA data consist of fingerprints measured at three different wavelengths, ...
ATR-FTIR spectroscopy and chemometrics: An interesting tool to discriminate and characterize counterfeit medicines.
Regression Trees (CART) and Soft Independent Modelling of Class Analogy (SIMCA). First it was verified whether the mentioned techniques are capable to distinguish samples containing different active ...