PCB Congener Internal Standard Mix Back Catalog number: 94569 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended TFA Trifluoroacetic acid, 50µg/ml in MeOH, 1,2ml Price on request 679799 Marbofloxacin, 100 µg/ml, Methanol, 1ml Price on request 72500 2-Bromo-4’-chloroacetophenone Price on request