Ammonium Standard: NH4+, 1000µg/ml in Water, 100ml Back Catalog number: VHG-INH41K-100 Availability: In the manufacturer's stock Price on request - + Recommended 8984.8-100-AN 2,4-Dimethylaniline,100 µg/mL,acetonitrile,1mL Price on request 59394 Anions Mix Price on request P840600 Pyrazinamide, 1g Price on request