Potassium (K), 1000µg/ml in 2%-HNO3/Water, 100ml Back Catalog number: 57019 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 2531.13-100MG (6-Methoxy-2-naphthyl)acetic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 23981-47-7 Price on request 97720 Bentazon Price on request 8732.30-100MG Di-n-undecyl phthalate, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 3648-20-2 Price on request