| A tandem MSn method was developed and validated using an ion trap GC/MS for the analysis of organophosphorus pesticides in apple matrix. The method provides good sensitivity at the low picogram range and excellent ion ratio confirmational data of the product ion spectra.
A linear working range was established at levels normally run on a GC-specific detector such as NPD or FPD. A single injection generated a report for quantitation and confirmation of the presence of organophosphorus pesticides in apple matrix.
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