EPA Method 525 - Internal Standard Back Catalog number: 30031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677020 Imidacloprid olefin, 100 µg/ml, Acetonitrile, 1m Price on request 2661.12-100-IOX10 Arochlor 1232, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 11141-16-5 Price on request 9138.7-100MG Mesalazine, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 89-57-6 Price on request