Aplikace Evaluating Inert Flow Path Components and Entire Flow Path for GC-MS-MS Pesticide Analysis Stáhnout Finding Pesticides using an Agilent 7200 GCQ-TOF and Unknowns Analysis Software Stáhnout Analysis of multiple pesticide residues in scallion by gas chromatography quadrupole time of flight–mass spectrometry (GC Q-TOF) Stáhnout Negative Chemical Ionization and Accurate Mass – A Novel Approach to the Analysis of Pesticides by GC-Q-TOF Stáhnout