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Comprehensive Quantitation and Identification of Pesticides in Food Samples Using the New Eksigent ekspert™ ultraLC 100 and the New AB SCIEX QTRAP® 4500 System

1 Jun 2014

Liquid Chromatography coupled to Tandem Mass Spectrometry (LC-MS/MS) is a widely used analytical tool for the screening of food residues and contaminants. Here we present a new method using QuEChERS extraction, separation using the new Eksigent ekspert™ ultraLC 100 system with a Phenomenex Synergi™ 2.5u Fusion-RP column, and the new AB SCIEX QTRAP® 4500 system. The mass spectrometer was operated in highly selective and sensitive Multiple Reaction Monitoring (MRM) mode. The Scheduled MRM™ algorithm was used to obtain the best data quality and combined with fast polarity switching to cover the broadest range of pesticides possible. In addition, MS/MS spectra were acquired to enable compound identification with highest confidence based on mass spectral library matching.

Triple Quad 4500 system

SCIEX

The Triple Quad 4500 system takes the legendary API 4000 platform and intelligently re-engineers it to set a new benchmark for reliable quantitation - with a 10X increase in sensitivity over competitive triple quads in the same class. The LC/MS/MS workhorse is intelligently re-engineered. Whether your research is focused on ADME, regulated bioanalysis, food, and environmental contaminant screening targeted quantitative proteomics or clinical research, the SCIEX Triple Quad 4500 system covers your key performance criteria: quantitative sensitivity dynamic range scan speed ionization source flow range footprint.

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Comprehensive Quantitation and Identification of Pesticides in Food Samples Using the New Eksigent ekspert™ ultraLC 100 and the New AB SCIEX QTRAP® 4500 System