Metals Mix Back Catalog number: 50198 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 57019 Potassium (K), 1000µg/ml in 2%-HNO3/Water, 100ml Price on request 72711 2-Benzylphenol Price on request 71288 1,6-Dimethylnaphthalene Price on request