EPA Method 531.1 - Analytes Back Catalog number: 30042R Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8911.14-100-T 3-Methyl-2,2',4,6'-tetrachlorodiphenylmethane Price on request 56073 Tantalum (Ta) Price on request 2628.35-10UG 17 alpha(H),21ß(H)-(22RS)-Pentakishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 54370-82-0 Price on request