EPA Method 8140/8141 Analytes Back Catalog number: 81400 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9747.10-K-ME Ecgonine methyl ester, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. Price on request 677865 Thiencarbazone-methyl, 10.0 µg/ml, Acetonitrile, Price on request 33001 EPA Method 524.2 - Revision 4.0 Price on request