“…A scheme of the configuration of a Q‐TOF analyzer, which consists of a quadrupole front‐end and an orthogonal‐acceleration TOF backend for MS/MS, is presented in Figure 6. All these features, which make Q‐TOF instruments ideally suited for screening purposes of unknown compounds (Bobeldijk et al, 2001b; Reemtsma, 2003), have been exploited or evaluated by various authors in the identification and quantification of pesticides and their TPs in water (Hogenboom et al, 1999; Hogenboom, Niessen, & Brinkman, 2000; Maizels & Budde, 2001; Thurman, Ferrer, & Parry, 2002; Sancho, Pozo, & Hernández, 2004).…”