This Technical Overview demonstrates the robustness of an Agilent 1290 Infinity II
LC system coupled to an Agilent Ultivo Triple Quadrupole LC/MS for the routine
analysis of pesticides in food. Technological innovations within the Ultivo LC/MS
result in an instrument with a much smaller footprint, while maintaining the
performance found in many larger MS systems.
Robustness and reproducibility are shown over a 5-day period during which the
Ultivo LC/MS system was exposed to more than 1,500 avocado extract samples
spiked with pesticides. For the majority of analytes, we demonstrated less than
5 % peak area RSD for both the raw peak areas, and calculated concentrations of
20 ng/g down to the maximum residue level (MRL) of 10 ng/g.
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