EPA Method 548.1 Analyte Back Catalog number: 30277 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2545.14-100-ME (±)-Atenolol,100 µg/mL,MeOH,1mL, Price on request 10711.4-100-MEX5 O,O-Diethyldithiophosphate-13C4, sodium salt Price on request 689004 Candesartan, 50mg Price on request