ISTD/Surrogate Standard Back Catalog number: 92572 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 83558 o-Tolualdehyde-DNPH, 100µg/ml in Acetonitrile, 1ml Price on request 55148 Inorganic Drinking Water Kit Price on request 92366 PCB Isomer Standard “Dutch 7”, 10µg/ml in Isooctane, 1ml Price on request