EPA Method 8330 Analyte Back Catalog number: 79079 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52145 Method 200.8 / 1638 / 1640 Internal Standard, in 2%-HNO3/Water, 4x25ml Price on request 9396.14-10MG (+/-)-Atenolol-d7 (isopropyl-d7), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 29122-68-7 Price on request H944870 (S)-4-Hydroxy Mephenytoin, 10mg Price on request