Surrogate Standard Solution, 1.2ml, nonane Back Catalog number: EPA-23SS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 2944.14-100-IO Ethyl viologen-d8 dichloride (rings-d8), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Unlabelled 3688-18-4 Price on request L12985500CY Disulfoton-sulfoxide, 10µg/mL in Cyclohexane, 10ml Price on request 79710 Bentazon, 1000µg/ml in Acetonitrile, 1ml Price on request