MA - VPH Matrix Spiking Sub Back Catalog number: 91965 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676234 Pendimethalin, 100 µg/ml, Cyclohexane, 1ml Price on request 91816 Surrogate Standard Price on request 675105 Sodium p-n-undecylbenzenesulfonate, 10.0 µg/ml, M Price on request