Zoekresultaten - 10 results
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 ...
Chromatographic fingerprinting as a strategy to identify regulated plants in illegal herbal supplements.
explore the potential use of chromatographic fingerprinting to identify plants present in herbal preparations intended for the treatment of ED. To achieve this goal, a HPLC- PDA and a HPLC- MS method were ...
Chromatographic impurity fingerprinting of genuine and counterfeit Cialis® as a means to compare the discriminating ability of PDA and MS detection.
is a very important topic. During this study a High Performance Liquid Chromatography-Photodiode Array (HPLC- PDA) and a High Performance Liquid Chromatography — Mass Spectrometry (HPLC- MS) method ...
Screening of herbal preparations for the presence of plant material regulated by law using HPLC-DAD and HPLC-MS
Publication Type: Dissertation Authors: Van Praag, N Source: UA, Antwerp, Belgium, p.NA (2016) Accession Number: NA Keywords: herbal preparations HPLC-DAD HPLC-MS SCREENING Health Topics: ...
Ontwikkeling van een HILIC-PDA methode voor de detectie van illegale polypeptiden
polypeptiden kan detecteren. De meest gebruikte vorm van chromatografie bij de analyse van illegale polypeptiden is Reversed-Phase High Performance Liquid Chromatography (RP- HPLC) gekoppeld aan ...
Detection and risk evaluation of counterfeit medicines based on physico-chemical properties: the fingerprint and chemometrics approach
classify counterfeit medicines. The potential use of chromatographic fingerprinting is investigated in Chapter VII. In this chapter a HPLC- PDA and HPLC- MS method were developed to acquire impurity ...
Testing of complementarity of PDA and MS detectors using chromatographic fingerprinting of genuine and counterfeit samples containing sildenafil citrate.
a very important issue. In this study, a high-performance liquid chromatography-photodiode array (HPLC- PDA) and high-performance liquid chromatography-mass spectrometry (HPLC- MS) method were developed ...
Development and validation of a ultra-high-performance liquid chromatography-UV method for the detection and quantification of erectile dysfunction drugs and some of their analogues found in counterfeit medicines.
compared to the registered HPLC method for the assay of Viagra(®) which was considered as the reference method. The method is also compatible with on-line coupling mass spectrometry and will significantly ...
Impurity fingerprints for the identification of counterfeit medicines--a feasibility study.
analysed on a HPLC- UV system. A clear distinction has been obtained between genuine and illegal tablets by the mean of a discriminant partial least squares analysis of the log transformed chromatograms. ...
A validated ultra high pressure liquid chromatographic method for qualification and quantification of folic acid in pharmaceutical preparations.
the HPLC conditions of a validated method. These start conditions were tested on four different UHPLC columns: Grace Vision HT ™ C18-P, C18, C18- HL and C18-B (2 mm × 100 mm, 1.5 μm). After selection of ...