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RSpak
The RSpak columns from Shodex are based on polymers. In this product line there are columns for the reversed phase as well as for the ion exclusion mechanism. The reversed phases do not have a C18 group, so that the columns are very stable and have a long life time.
RSpak DE-213, DE-413 and DE-613
- general application, similar polarity to ODS columns
- can be used in 100% water
- for analysing vitamins, preservatives and organic acids
RSpak DM-614
- for analysing amino acids and water-soluble vitamins
RSpak DS-413 and DS-613
- for the reversed-phase analysis of highly polar substances that are not retarded on an ODS column
RSpak KC-811
- for the analysis of organic acids
- separates compounds with ion exclusion and reversed phase mechanism
Technical Data
| Phase | Material | Functional group | Particle size | Pore size | pH range | USP |
| RSpak DE-213 | Polymethacrylate | - | 4 µm | 25 Å | 2.0-12.0 | L71 |
| RSpak DE-413 | Polymethacrylate | - | 4 µm | 25 Å | 2.0-12.0 | L71 |
| RSpak DE-613 | Polymethacrylate | - | 6 µm | 25 Å | 2.0-12.0 | L71 |
| RSpak DM-614 | Polyhydroxymethacrylate | - | 10 µm | 200 Å | 2.0-10.0 | L39 |
| RSpak DS-413 | Styrene divinylbenzene | - | 3.5 µm | 200 Å | N/A | L21 |
| RSpak DS-613 | Styrene divinylbenzene | - | 6 µm | 200 Å | N/A | L21 |
| RSpak KS-811 | Styrene divinylbenzene | Sulfo (H+) | 6 µm | N/A | N/A | L17/L22 |
Downloads
Brochures
Shodex HPLC Columns Catalog 2023-2024
Applications
Shodex RSpak Organic Acid Standards (4) (DE-413)
Shodex RSpak Organic Acids in White Wine (KC-811)
Shodex RSpak DE-413 Amides Applications
Shodex RSpak DC-613 & SUGAR columns Applications
Technical support
Shodex Technical Notebook No. 3 Food Analysis saccharides, Organic aAcids, Vitamins, Fatty Acids and Amino Acids Technical-Support
Shodex Technical Notebook No. 3 Organic Acids Technical-Support
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