TPH Internal Standard Back Catalog number: 92636 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 44P-DDT 1,1,1-Trichloro-2,2-bis(4-chlorophenyl)ethane, 1.2mL x 100ug/mL, nonane Price on request 2248.22-100-AN HT-2 Toxin, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 26934-87-2 Price on request 30042 EPA Method 531.1 - Analytes Price on request