Potassium (K), 1000µg/ml in 2%-HNO3/Water, 100ml Back Catalog number: 57019 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 678253 Phorate-sulfone, 100 µg/ml, Acetonitrile, 1ml Price on request 678178 Oxadiargyl, 100mg Price on request 676264 D6-Benzaldehyde, 1000mg Price on request