From: Exposure risks and ineffectiveness of total release foggers (TRFs) used for cockroach control in residential settings
Insecticide
Retention time (min)
Quantification ion
Qualifying ion
Fipronil
23.00
367
213
Piperonyl butoxide
28.90
176
149
Tetramethrin
29.95–30.30
164
123
Permethrin (cis- and trans-)
35.35–35.80
183
163
Cypermethrin
38.50–39.40
181