Interference Standard 3 Back Catalog number: 53050 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679413 Closantel, 100mg Price on request 682186 D14-Trifluralin, 100 µg/ml, Acetonitrile, 1ml Price on request 674556 Fenthion-oxon, 10mg Price on request