MA - EPH Matrix Spike Back Catalog number: 92113 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72824 Chlorsulfuron, 1000μg/ml in MeOH, 1ml Price on request 673202 Atrazine, 10.0 µg/ml, Acetonitrile, 10ml Price on request 66115 2,3,4,4’,6-Pentachlorobiphenyl Price on request