Copper (Cu), 1000µg/ml in 2%-HNO3/Water, 100ml Back Catalog number: 57029 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 70283 Toxaphene Price on request 1519.11-K-IO 5-tert-Butyl-2-methylphenol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5781-02-2 Price on request C17875000 Trimethoprim, certified, 0.25g Price on request