HPLC column Waters Symmetry C-18 3.5um 2.1mmx50mm

Waters Symmetry C-18 3.5um 2.1mmx50mm HPLC Column. Specifications Mobile Phase 50%/50% Acetonitrile/Water. Sample Acetone 10uL/Ml. Acenaphthene 0.15mg/Ml. Flow Rate 0.4mL/min. Detection 245nm. Temperature Ambient. Injection Volume 0.5uL. Pressure 1413PSIG. Analysis Of Unbonded Silica Particle Size Distribution 50% cum vol 3.35um-3.65um. 90%/10% Ratio <1.50. Multipoint Nitrogen Sorption Porosity 64%-67%. Median Pore Diameter 85A-102A. Surface Area 325m2/g-355m2/g. Atomic Emission Na <10ppm Al <10ppm Fe <10ppm. Scanning Electron Microscopy / Silanol Ratio By 29-Si NMR / Silanol Distribution By FTIR All Proprietary. Total Carbon 18.82%-20.18%. C-18 Surface Coverage 3.09umoles/m2-3.31umoles/m2.