The Pesticides GC/MS Library contains 1300 pesticides and 33 saturated hydrocarbons (C7-C40) spectra including retention indices. All the spectra, registered with official CAS information, have been acquired from the injection of pure chemicals. All of the retention indices have been verified with data reported in the specific literature, and underwent repeatability testing.

The compounds were checked three times during a six month period. The GC/MS pesticide library was developed by Prof. Mondello and his team of the University of Messina, Italy. The mass spectra and retention indices registered in the library were obtained using the Shimadzu GCMS-QP2010 and with an SLB-5MS (5 % diphenyl + 95 % dimethyl polysiloxane) 30 m x 0.25 mm ID x 0.25 μm film thickness (Supelco, #28471-U) and an Equity-1 30 m x 0.25 mm ID x 0.25 μm film thickness (Supelco, #28046-U) .columns.