MA - VPH Surrogate Spike Back Catalog number: 92368 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673290 Fenthion, 10.0 µg/ml, Acetonitrile, 10ml Price on request 34601 1,4-Diisopropylbenzene Price on request 59143 Internal Standard ICP-MS (200.8) Price on request