Potassium (K), 1000µg/ml in 2%-HNO3/Water, 100ml Back Catalog number: 57019 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 0202.22-100-T Dibenz[a,c]anthracene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 215-58-7 Price on request 679790 Salicylic acid, 250mg Price on request 1024.18-K-TX5 Chrysene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 1719-03-5 Price on request