QC-7A - ICP Optical Back Catalog number: 50281 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3193.23-K-IO Ethyl heneicosanoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 28898-67-1 Price on request 72819 Di-n-octyltin dichloride, 1000µg/ml in MeChl, 1ml Price on request 10018R EPA Method 8270A - Analytes Mix #8 Price on request