EPA Method 1657 Analytes Back Catalog number: 31784 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10536.22-2.53UGX5 [13C22 15N2]-Tetracycline Price on request 32251 1,1-Dichloroethene, 20mg/ml in MeOH, 1ml Price on request 672854 Fluroxypyr, 100mg Price on request