Method 1640 Tuning Standard Back Catalog number: 53147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674448 Anthraquinone, 100 µg/ml, Acetonitrile, 5ml Price on request 3694-100-15G Myticus edulis, homogenized (Domoic acid), 98µg/g, Solvent-hom. Mussel, Unit 15g, # of units-1, Cas.no. Price on request C17009500 Sulfosulfuron, 100mg Price on request