Calibration Standard 1 Back Catalog number: 52021A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended HFPO-DA 2,3,3,3-Tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)propanoic acid, 50µg/ml in MeOH, 1,2ml Price on request 8866.9-K-IO 5-Methylquinoxaline, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request XA13570013CY Fensulfothion-oxon, 100µg/mL in Cyclohexane, 1ml Price on request