QC-7A - ICP Optical Back Catalog number: 50281 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4471-20-NN Precition and Recovery (PAR) Standard Solution Dioxin-like PCBs each in 20ng/mL solution in n-nonane; unit: 1x1mL Chiron No. Dioxin-like PCBs PCB No. CAS No. 2006.12 3,3’4,4’-TetraCB PCB-77 [32598-13-3] 2007.12 3,4,4’,5-TetraCB PCB-81 [703 Price on request 2280.7-K-100MG p-Cresol-d8, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 190780-66-6 Price on request 30103 EPA Method 551.1 Internal Standard Price on request