Picric acid, 100 µg/ml, Acetonitrile, 10ml Back Catalog number: 679577 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 57041 Niobium (Nb) Price on request 678461 Prochloraz, 100 µg/ml, Acetonitrile, 5ml Price on request 41002 EPA Method 608Mix #2 Price on request