EPA Method 515.2 Analytes - Underivatized Back Catalog number: 83597 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4319-200-HE PCB Mixture 2263,12 2,2,5- Trichlorobiphenyl PCB18 1999,12 2,4,4`-Trichlorobiphenyl PCB28 2264,12 2,4,5`-Trichlorobiphenyl PCB31 2265,12 2,2`,3,5`-Tetrachlorobiphenyl P Price on request 2518.7-100MG Theophylline,neat,neat,100mg, Price on request 70980 n-Docosane Price on request