Spike Sample Standard 2A (Water) Back Catalog number: 53029 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96616 Ethylsulfate.sodium salt Price on request 684390 4,4'-DDT, 100 µg/ml, Cyclohexane, 1ml Price on request 72547 Phenyl sulfone Price on request