TOC Calibration Standard Back Catalog number: 50240 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677811 D10-1-Butanol, 100 µg/ml, Acetonitrile, 1ml Price on request 1956.16-K-IO 2-Phenylnaphthalene, 1000µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 612-94-2 Price on request 72249 L-Serine Price on request