OP B4. MULTI-RESIDUE ANALYSIS OF PESTICIDES IN FOOD
USING GC/MS/MS TANDEM MASS SPECTROMETRYWITH THE FINNIGAN TSQ

N. Andrejić, S. Đekić

Analysis d.o.o. , Gandijeva 76A, Belgrade

A pesticide is anything that inhibits or kills pests such as weeds, molds, fungi, insects and rodents. Pesticide residues in food are strictly regulated according to the provisions of US Environmental Protection Agency (EPA) CFR Title 40. Among the pesticides for which standard values are currently set, GC/MS/MS can analyze approximately 300 compounds. The superior selectivity of this technique allows interference-free quantification, even with peak coelution, and provides positive confirmation of various pesticides in a single analytical run. Simultaneous analysis was carried out on multi-component pesticide residues in food products using a quadrupole GC/MS/MS system, the TSQ Quantum GC. Results obtained indicated excellent sensitivity (0.1 ppb), reproducibility (10% at 5 ppb) and linearity (R2 > 0.995) in the range of 0.1-100 ppb.