Quantitation and Confirmation of Organophosphorus Pesticides in Apple Extract in a Single Injection by GC-MS/MS
2 October 2015
This application note demonstrates a quantitative method for the analysis of organophosphorus pesticides in apple extract. The analysis of organophosphorus pesticides is routinely performed by injection on a selective GC detector, the Flame Photometric Detector (FPD) or Nitrogen Phosphorus Detector (NPD). Both the FPD and NPD are very sensitive because of their selectivity and show good linearity in the low picogram concentrations. However, when the matrix ions coelute with a target compound, the resulting spectrum is very complex, and the confirmation is not always clearly seen.