MA - VPH Surrogate Spike Back Catalog number: 92368 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679136 Metolachlor deschloro, 100 µg/ml, Acetonitrile, Price on request M-8315-DNPH-10ML Acetaldehyde-DNPH & Formaldehyde-DNPH, 10mL Price on request 677465 Fexofenadine hydrochloride, 10mg Price on request