Internal Standard for AB SIM Back Catalog number: 94541 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 15900-0824-100AN5 Chloridazon-desphenyl, 100µg/ml in Acetonitrile, 5ml Price on request 52098 Trace Metals in Fish Price on request 50594 Copper - 20 PPM Price on request