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Many methods currently published as USP monographs utilize the USP Classification of HPLC Columns. This listing of Cogent Columns by USP Classification is published as an aid to scientists using these monographs.

L1     C18 (ODS) bonded to Dp silica ranging from 1.8µ-10µ.            USP_GraphicHPLC_Column_Photo_USP-Classification

L3     Silica, porous particles, un-bonded, Dp 1.8µ-10µ.

L7     Octyl (C8) bonded to Silica, 1.8µ-10µ.

L8     Aminopropyl Silane (NH2) bonded to Dp silica ranging from 1.8µ-10µ.

L10     Cyano (CN) groups bonded to Dp silica ranging from 1.8µ-10µ.

L11     Phenyl (C13H25) groups bonded to Dp silica ranging from 1.8µ-10µ.

L20     DIOL groups bonded to Dp silica ranging form 1.8µ to 10µ. L26     Butyl (C4) bonded to Dp Silica raning from 1.8µ to 10µ. L43     PentaFluoroPhenyl (PFP). Dp ranging from 1.8µ to 10µ L62     C30 silane bonded phase on a fully porous spherical silica, 1.8 to 10µm in diameter.


 
 

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