Drugs

Retention time (min)

MW

Precursor ion^a

Product ion

Risperidone

2.66

410.49

411

191

Olanzapine

4.23

312.44

313

256, 84, 213, 282

Quetiapine

4.78

383.51

384

253, 279, 158

Clozapine

5.59

326.82

328

271, 84, 297, 229, 252

Ziprasidone

5.77

412.94

414

194, 177, 221

Perospirone

6.60

426.57

427

177, 208, 167, 251

Aripiprazole

8.64

448.39

449

286, 176, 219

Blonanserin

16.97

367.50

368

297, 325, 98

Clozapine-d₄ (IS)

5.53

330.15

331

272