Mixed Calibration Standard 3 Back Catalog number: 52337 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 97913 Difenzoquat Price on request 59344 Perchlorate (ClO4-), 100µg/mL in Water, 100ml Price on request 2190.3-50-ME Perfluoropropionic acid, sodium salt, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 378-77-8 Price on request