Ammonium Standard: NH4+, 1000µg/ml in Water, 100ml Back Catalog number: VHG-INH41K-100 Availability: In the manufacturer's stock Price on request - + Recommended S-4417-10-ANX10 PCB Mixture 1 7 Analytes, each 10µg/mL in acetonitrile; unit: 10x1mL Prod.no. Compound Description CAS No. 1999.12 2,4,4’-Trichlorobiphenyl PCB 28 [7012-37-5] 2000.12 2,2’5,5’-Tetrachlorobiphenyl PCB 52 [35693-99-3] 20001.12 2,2’4,5,5’-Pentachlorobi Price on request 1968.12-5MG 2,2',4,4',6-Pentabromodiphenyl ether, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 189084-64-8 Price on request 15900-2660-100CY5 Hexachlorobenzene (HCB), 100µg/ml in CY, 5ml Price on request