EPA Method 622/8140 - Analytes Back Catalog number: 93126 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72173 L-Glutamic acid Price on request R509800 Rilpivirin, 25mg Price on request 678663 S-Metolachlor Metabolite CGA 37735, 100mg Price on request