EPA Method 200.8 Internal Standard Back Catalog number: 56332 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682046 HT-2 Toxin, 100 µg/ml, Acetonitrile, 5ml Price on request 58273 Tantalum (Ta) Price on request 78009 3,5-Dichlorobenzoic acid Price on request