EPA Method 8310 Surrogates, 50µg/ml in MeChl, 1ml Back Catalog number: 91206 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 9864.17 Alprazolam-d5, , Solvent-, Unit , # of units-, Cas.no. 125229-61-0 Price on request 96588 Ibuprofen, 100μg/ml in MeOH, 1ml Price on request 9397.20-100-ME Citalopram hydrobromide Price on request