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Cosmosil UPS HPLC Column Selection Guide
USP specifications
The USP (U.S. Pharmacopeia) specifications are listed below with the recommended COSMOSIL HPLC columns.
| Description | Recommended columns | |
|---|---|---|
| L1 | Octadecyl silane chemically bonded to porous silica or ceramic micro-particles, 1.7 to 10 μm in diameter, or a monolithic rod | COSMOSIL C18-MS-II COSMOSIL C18-AR-II COSMOSIL C18-PAQ COSMOSIL C18-AR-300 |
| L3 | Porous silica particles, 5 to 10 μm in diameter | COSMOSIL SL-II |
| L7 | Octylsilane chemically bonded to totally porous silica particles, 1.7 to 10 μm in diameter | COSMOSIL C8-MS COSMOSIL C8-AR-300 |
| L10 | Nitrile groups chemically bonded to porous silica particles, 3 to 10 μm in diameter | COSMOSIL CN-MS |
| L11 | Phenyl groups chemically bonded to porous silica particles, 1.7 to 10 μm in diameter | COSMOSIL PE-MS COSMOSIL Ph-AR-300 |
| L13 | Trimethylsilane chemically bonded to porous silica particles, 3 to 10 μm in diamete | COSMOSIL TMS-MS |
| L20 | Dihydroxypropane groups chemically bonded to porous silica particles, 5 to 10 μm in diameter | COSMOSIL Diol-120-II COSMOSIL Diol-300-II |
| L23 | An anion-exchange resin made of porous polymethacrylate or polyacrylate gel with quartenary ammonium groups, about 10 μm in size | COSMOGEL QA |
| L26 | Butyl silane chemically bonded to totally porous silica particles, 3 to 10 μm in diameter | COSMOSIL C4-MS COSMOSIL C4-AR-300 |
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Cosmosil UPS HPLC Column Selection Guide