Interference Standard 4 Back Catalog number: 52041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended A14680000AL-100 Malachite green oxalate, 100µg/mL in Acetonitrile, 1ml Price on request 679825 Tylosin, 100 µg/ml, Methanol, 1ml Price on request 66089 2,2’,3,4,6’-Pentachlorobiphenyl (89) Price on request