CLP Semi-Volatile Base/Neutral Surrogate Std Back Catalog number: 23016 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680186 2,4,6-Trinitrotoluene, 100 µg/ml, Acetonitrile, Price on request 95377 Pesticide Mix #2 Conc Price on request 96716 Surrogate Standard Price on request