Herbicide Spiking Standard - TCLP Procedure Back Catalog number: 19249 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678663 S-Metolachlor Metabolite CGA 37735, 100mg Price on request 678436 Isofenphos-methyl, 100 µg/ml, Acetonitrile, 1ml Price on request 71229 Clopyralid methyl derivative Price on request