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Sensitivity issues with your Single Quad Pesticide analysis?
Dear GC-MS user,
The quality of the data from your pesticide analysis is important to you, but conventional Single Quadrupole analysis of pesticides in food matrix often is simply not sensitive enough due to matrix interference. Have you considered joining the growing number of users who switched to GC-MS/MS? Has the cost been an issue? Read below how you can upgrade your existing Agilent Single Quad GC-MS (5973 or 5975) to an Evolution Triple Quad (at far lower cost than a full GC-MS/MS) and see the vast improvement in results for yourself.
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89 pesticides in redcurrant and mushroom
Using a QuEChERS method, followed by Thermal Desorption (TDAS) and a 6890/5975 Evolution Triple Quad-upgraded system, 89 pesticides were analyzed in spiked samples of redcurrant and mushroom. The spike concentration into the blanks was 5 ppb (ug/kg), a very low concentration to be determined in complex matrices such as these. Alongside are a few typical results, as seen in MassHunter Data Analysis. Please note that, at this stage, transitions obtained with an Evolution instrument, are labeled as their product ions. Where more than one transition result in the same product ion, the notation xxx.1, xxx.2 etc. is used.
MATRIX INDEPENDENCE! Overlaid chromatograms of various isomers of DDD and DDT at 5 ppb in redcurrant and mushroom.
Aldrin, Penconazole and Dieldrin at 5 ppb in mushroom.
pirimiphos-methyl at 5 ppb in mushroom
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