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Zoekresultaten - 8 results
A Robust Transferable Method for the Determination of Glyphosate Residue in Liver After Derivatization by Ultra-high Pressure Liquid Chromatography–Tandem Mass Spectrometry
235L 961191218, Issue 5 (2016) Keywords: derivatization glyphosate liquid chromatography Liver Mass Spectrometry Solid phase extraction Health Topics: Food consumption and food safety Consommation et ...
Analysis of illegal peptide biopharmaceuticals frequently encountered by controlling agencies.
Additionally, we also show that when applying the same LC gradient, it is also possible to quantify these peptides without the need for derivatization or the use of expensive labelled peptides. This ...
Rapid Determination of Ethephon in Grapes by Hydrophilic Interaction Chromatography Tandem Mass Spectrometry
Spectrometry time Abstract: Ethephon analysis usually requires indirect and laborious method including a derivatization step before gas chromatography tandem mass spectrometry (GC- MS / MS) determination. In ...
Glyphosate determination in cereals and liver after derivatization
Pesticides Joint Workshop, NA, Issue EURL-AO, EURL-SRM, NA (2014) Keywords: Cereals chromatography derivatization glyphosate Liver Mass Spectrometry pesticide Pesticides Workshop Health Topics: Food ...
Analysis of glyphosate residue in liver by UPLC-MS/MS
chromatographic separation which is known to be difficult. A derivatization step with FMOC counter this problem [1] and allow to achieve lower LOQ. The second one, liver is a very complex polar matrix which shows ...
Determination of Glyphosate and Its Metabolite AMPA (Aminomethylphosphonic Acid) in Cereals After Derivatization by Isotope Dilution and UPLC-MS/MS
derivatization with 9-fluorenylmethyl chloroformate followed by separation with a conventional reversed-phase rapid chromatography used in daily routine analysis and detection by electrospray ionization tandem ...
N-acetyl-(1-amino-2-naphthol-6-sulphonic acid), a common metabolite of sunset yellow FCF, orange GGN and 1-amino-2-naphthol-6-sulphonic acid in rat urine
common peak could be detected under the same liquid chromatographic conditions, the retention time of which was different from that of the ANSA standard. However, after derivatization of the ANSA standard ...
Simultaneous determination of p-aminobenzoic acid, acetyl-p-aminobenzoic acid and p-aminohippuric acid in serum and urine by capillary gas chromatography with use of a nitrogen-phosphorus detector151
(1981) Keywords: 0 4-Aminobenzoic Acid a acid Acids Aminobenzoic Acids Aminohippuric Acids analogs & derivatives analysis article blood chromatography Chromatography,Gas derivatization detection ...