USP number USP Description Recommended columns L1 Octadecyl silane chemically bonded to porous silica or ceramic micro-particles, 1.5 to 10µm in diameter, or a monolithic rod. TSK-GEL ODS-100V, ODS-100Z, ODS-100S, Super-ODS, ODS-80Tm, ODS-80Ts, ODS-120A, ODS-120T L7 Octylsilane chemically bonded to totally porous silica particles, 1.5 to 10µm in diameter, or a monolithic silica rod. TSK-GEL Super-Octyl, Octyl-80Ts L8 An essentially monomolecular layer of aminopropylsilane chemically bonded to totally porous silica gel support, 3 to 10µm in diameter. TSK-GEL NH2-60 Contact us for further information. L9 Irregular or spherical, totally porous silica gel having a chemically bonded, strongly acidic cation-exchange coating, 3 to 10µm in diameter. TSK-GEL SP-2SW L10 Nitrile groups chemically bonded to porous silica particles, 3 to 10µm in diameter. TSK-GEL CN-80Ts L11 Phenyl groups chemically bonded to porous silica particles, 1.5 to 10µm in diameter. TSK-GEL Super-Phenyl L13 Trimethylsilane chemically bonded to porous silica particles, 3 to 10µm in diameter. TSK-GEL TMS-250 L14 Silica gel having a chemically bonded, strongly basic quaternary ammonium anion-exchange coating, 5 to 10µm in diameter. TSK-GEL QAE-2SW Contact us for further information. L20 Dihydroxypropane groups chemically bonded to porous silica particles, 3 to 10µm in diameter. TSK-GEL QC-PAK GFC, SWxl, SW, and SuperSW series L21 A rigid, spherical styrene-divinylbenzene copolymer, 3 to 10µm in diameter. TSK-GEL Hxl, Hhr, SuperH, SuperHZ, and SuperMultiporeHZ series L22 A cation-exchange resin made of porous polystyrene gel with sulfonic acid groups, about 10µm in size. TSK-GEL SCX L23 An anion-exchange resin made of porous polymethacrylate or polymethacrylate gel with quartenary ammonium groups, about 10µm in size. TSK-GEL SuperQ-5PW, BioAssist Q, IC-Anion-PW (Contact us for further information.) L24 A semi-rigid hydrophilic gel consisting of vinyl polymers with numerous hydroxyl groups in the matrix surface, 32 to 63µm in diameter. Toyopearl HW-type L25 Packing having the capacity to separate compounds with a molecular weight range from 100-5000 daltons (as determined by polyethylene oxide), applied to neutral, anionic, and cationic water-soluble polymers. TSK-GEL G2500PW, G2500PWxl, and G3000PWxl-CP L33 Packing having the capacity to separate dextrans by molecular size over a range of 4,000 to 500,000 daltons. It is spherical, silica-based, and processed to provide pH stability. TSK-GEL SuperSW, SWxl, QC-PAK GFC, and SW series L37 Packing having the capacity to separate proteins by molecular size over a range of 2,000 to 40,000 daltons. It is a polymethacrylate gel. TSK-GEL G3000PWxl, G3000PW L38 A methacrylate-based size-exclusion packing for water-soluble samples. TSK-GEL PWxl, PW, Alpha, and SuperAW series L39 A hydrophilic polyhydroxymethacrylate gel of totally porous spherical resin. TSK-GEL PW, PWxl, Alpha, and SuperAW series L52 A strong cation exchange resin made of porous silica with sulfopropyl groups, 5 to 10µm in diameter. TSK-GEL SP-2SW, IC-Cation-SW (Contact us for further information.) L58 Strong cation-exchange resin consisting of sulfonated cross-linked styrene-divinylbenzene copolymer in the sodium form, about 6 to 30µm diameter. TSK-GEL SCX (Na+) L59 Packing having the capacity to separate proteins by molecular weight over the range of 5 to 7000 kDa. It is spherical (5 - 10µm), silica-based, and processed to provide hydrophilic characteristics and pH stability. TSK-GEL G2000SW, G3000SW and G4000SW