1. Application of HPLC-TOF-MS and HPLC-QTOF-MS/MS for pesticide residues analysis in fruit and vegetable matrices / Carmen Ferrer, Octavio Malato, Ana Agüera, and Amadeo R. Fernández-Alba -- 2. Chemical evaluation of water treatment processes by LC-(Q)TOF-MS: identification of transformation products / Ana Agüera, Maria del Mar Gómez Ramos, and Amadeo R. Fernández-Alba -- 3. Selected applications of accurate mass determinations using LC-TOF for toxic compounds in products of animal origin / Perry Martos and Heather McCormick -- 4. High mass resolution versus MS/MS / Anton Kaufmann -- 5. Time-of-flight mass spectrometry versus orbitrap-based mass spectrometry for the screening and identification of drugs and metabolites: is there a winner? / Peter Eichhorm, Sandra Pérez, and Damià Barceló -- 6. Electrospray operational parameters in TOF-MS / Thomas Glauner and A. Paul Zavitsanos -- 7. MALDI-TOF MS for characterization of synthetic polymers in aqueous environment / Ian Ken D. Dimzon and Thomas P. Knepper -- 8. The potential of ambient desorption ionization methods combined with high-resolution mass spectrometry for pesticide testing in food / Juan F. García-Reyes, Bienvenida Gilbert-López, Ana Agüera, Amadeo R. Fernández-Alba, and Antonio Molina-Díaz -- 9. Application of GC-TOFMS for pesticide residue analysis in grapes / Kaushik Banerjee, Soma Dasgupta, and Sagar C. Utture