GFAA Calibration Back Catalog number: 52314 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 57719 Potassium (K) Price on request 0375.15-K-T 9-Isopropylcarbazole, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1484-09-9 Price on request 1551.21-K-IO n-Heneicosane-d44, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 39756-37-1 Price on request