EPA Method 528 Internal Standard Back Catalog number: 93188 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681364 Furaltadone-Hydrochloride, 100mg Price on request C14283850 Imidaclothiz, 25mg Price on request 11445.21-100-IO Diphenyl-3-isopropylphenyl phosphate,100 µg/mL,isooctane,1mL, Price on request