Purospher RP-18 · Sigma-Aldrich / Merck
For Purospher RP-18, original column's brand is Sigma-Aldrich / Merck; gl sciences alternative is Inertsil ODS-2; bonded phase is C18; waters closest selectivity column is CORTECS C18+; waters recommended uplc column is ACQUITY UPLC HSS C18 SB, recorded from its source on 2026-09-01; source re-checked 2026-09-30.
- Original column's brand
- Sigma-Aldrich / Merck our reading
- Original column name
- Purospher RP-18 verified
- GL Sciences alternative
- Inertsil ODS-2 verified
- Bonded phase
- C18 verified
- Waters closest selectivity column
- CORTECS C18+ verified
- Waters recommended UPLC column
- ACQUITY UPLC HSS C18 SB verified
- Waters recommended HPLC column
- XSelect HSS C18 SB XSelect HSS C18 SB XP verified
- Waters recommended preparative column
- XBridge BEH Shield RP18 OBD verified
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
Purospher RP-18 | – | Inertsil ODS-2 View App Notes |
— glsciencesinc.com, retrieved 2026-09-01
Where each value comes from
These values are stated in different places, and not all on the same page, so each is shown with the passage that states it and the source that passage came from.
Original column's brand
Sigma-Aldrich / Merck 68 equivalents
— from glsciencesinc.com, retrieved 2026-09-01
Bonded phase, Waters closest selectivity column, Waters recommended UPLC column, Waters recommended HPLC column and Waters recommended preparative column
Purospher RP-18 | C18 | CORTECS C18+ | ACQUITY UPLC HSS C18 SB | XSelect HSS C18 SB XSelect HSS C18 SB XP | XBridge BEH Shield RP18 OBD |
— from waters.com, retrieved 2026-09-01
Sources
- glsciencesinc.comhttps://www.glsciencesinc.com/hplc-column-equivalents
- waters.comhttps://www.waters.com/waters/en_US/Column-Comparison-Chart-for-UPLC,-UHPLC,-HPLC/nav.htm?cid=135047266