EPA Method 515.1 Internal Standard Back Catalog number: 30023 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680900 Fluoxetine hydrochloride, 100µg/ml in MeOH, 1ml Price on request 10835.46-K-ME Quetiapine hemifumarate, 1000µg/ml in MeOH, 1ml Price on request 676616 4,4'-Oxydianiline, 250mg Price on request