EPA Method 8330 Analyte Back Catalog number: 79070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59041 High Spike 4 - ICP Price on request D292365 Desmethylnarcotine, 1mg Price on request 10004-1-100ML Ba, 1000 µg/mL in 2% HNO3, 100ml Price on request