EPA Method 8270A - Analytes Mix #8 Back Catalog number: 10018R Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8623.44-10MG meso-Tetraphenylporphyrine, , Solvent-, Unit , # of units-, Cas.no. 20998-75-8 Price on request 72637 Benzo(a)anthracene-7,12-dione Price on request 8736.3-100-ME Ammeline, , Solvent-, Unit , # of units-, Cas.no. 645-92-1 Price on request