624B Internal / Surrogate Standard Back Catalog number: 98628 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96166 PAH Standard (10 ppm), 10µg/ml in Acetonitrile, 1ml Price on request 93714 n-Hydrocarbon Standard Price on request 673466 Triforine, 10 µg/ml, Acetonitrile, 10ml Price on request