EPA Method 528 Internal Standard Back Catalog number: 93188 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71584 2,4,6-Trichlorophenol-PFB derivative Price on request 1548.17-K-IO n-Heptadecane-d36, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 39756-35-9 Price on request 3782.8-K-IO 2-Methoxy-3-isopropylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 25773-40-4 Price on request