FormNo. 203-821-249 01/05-REV0
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Conclusions
Ion Ratio can be used to supplement the confidence of a full mass spectrummatch for a pesticide
in food analysis, while indicating to the analyst that no quantificationmass bias exists. It will also
highlight those unusual cases where a good Reference Spectrummatchwas achieved, but the Ion
Ratiowas out of tolerance, which indicates a bias on the quantificationmass ormasses that could
lead to the reporting of an erroneously high concentration for a pesticide.
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