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Travelling-wave ion mobility time-of-flight mass spectrometry as an alternative strategy for screening of multi-class pesticides in fruits and vegetables.
parameter for identification purpose. This 2% value is in agreement with already reported criteria, for instance, for GC or LC retention time in European documents. Finally, the well-known feature of mobility ...
A proteomics approach for the quantification of Staphylococcus aureus enterotoxins a and b in several matrices using uplc-msms analysis.
endogenous tryptic peptides and show the same chemical behavior as the endogenous peptides. Both the endogenous peptide and its respective IS should elute from the column at the same retention time, assuring ...
Identification of potential migrants from printing inks used on paper and board food contact materials
substances can be used. One approach is to focus on pre-selected target analytes, with known fragmentation patterns and retention times. In the presented work, a screening method for more then 120 analytes was ...
A modified sample preparation for acrylamide determination in cocoa and coffee products
using acrylamide- D3 as internal standard. For identification and confirmation of acrylamide, relative retention time and two diagnostic ions were monitored. Good performance of the method was achieved by ...
Validation of a method for the detection and confirmation of nitroimidazoles and the corresponding hydroxy metabolites in pig plasma by high performance liquid chromatography-tandem mass spectrometry.
interferences at their retention times in chromatograms of blank plasma and reagents samples. The absence of a matrix effect enables the use of a (linear) calibration curve in solution for quantitation. The ...
Optimisation of a liquid chromatography-tandem mass spectrometric method for the determination of acrylamide in foods
chromatography coupled to tandem mass spectrometry analysis on a µBondapak C18 column using d3-acrylamide as internal standard. For identification, relative retention time and two diagnostic ions were monitored. ...