CPC Subgroup
B01J 20/282 Porous sorbents (ion exchange B01J39/00 - B01J41/00)
Full Title
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof > Sorbents specially adapted for preparative, analytical or investigative chromatography > Porous sorbents (ion exchange B01J39/00 - B01J41/00)
3 direct subcodes
Child Classifications
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- B01J 20/283 based on silica
- B01J 20/284 based on alumina
- B01J 20/285 based on polymers