Herbicide Spiking Standard - TCLP Procedure Back Catalog number: 19249 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79861 Clopyralid (Lontrel), 1000µg/ml in Acetonitrile, 1ml Price on request E509000 Elvitegravir, 25mg Price on request 54118 Tetramethylammonium Price on request