SepaPrep™ STR Series
Robust Reversed-Phase Columns Designed for Stable Performance and Contamination Resistance
Series Overview
The SepaPrep™ STR Series is engineered by carefully balancing pore size, surface area, and carbon loading to deliver robust retention, reliable resolution, and enhanced resistance to contamination, with STR referring to Stable and Robust performance. This design makes SepaPrep™ STR columns particularly well suited for routine analytical workflows involving complex or challenging sample matrices.
By employing a lower surface area silica compared to conventional reversed-phase columns, the SepaPrep™ STR Series reduces the number of active adsorption sites. This contributes to improved stability, cleaner separations, and extended operational lifetime, especially in applications where column fouling is a concern.
Key Features
Silica Characteristics
| Phase | USP Code | Particle Size | Pore Size | Specific Surface Area | Endcapping | Carbon Load | pH Range |
|---|---|---|---|---|---|---|---|
| C18 | L1 | 5 µm | 150 Å | 200 m2/g | Double | 15 % | 1.5 - 9.0 |
| C8 | L7 | 5 µm | 150 Å | 200 m2/g | Single | 8 % | 1.5 - 8.5 |
To maintain consistent performance and extend the working life of the column, it is recommended to operate the SepaPrep™ STR within its optimal pH range of 2.0 to 6.0. The maximum operating temperature is 60°C and the maximum pressure rating is 5,800 psi (40 MPa). For routine operation, pressure below 2,900 psi (20 MPa) is recommended.
Ordering Information
| Column Type | ID × Length | Phase | Particle Size | Pore Diameter | Part Number |
|---|---|---|---|---|---|
| Analytical Columns | |||||
| Analytical | 4.6 × 150 mm | C18 | 5 µm | 150 Å | SH-210505-004X150 |
| Analytical | 4.6 × 150 mm | C8 | 5 µm | 150 Å | SH-090505-004X150 |
| Analytical | 4.6 × 250 mm | C18 | 5 µm | 150 Å | SH-210505-004X250 |
| Analytical | 4.6 × 250 mm | C8 | 5 µm | 150 Å | SH-090505-004X250 |
| Preparative Columns | |||||
| Preparative | 10 × 150 mm | C18 | 5 µm | 150 Å | SH-210505-010X150 |
| Preparative | 10 × 150 mm | C8 | 5 µm | 150 Å | SH-090505-010X150 |
| Preparative | 10 × 250 mm | C18 | 5 µm | 150 Å | SH-210505-010X250 |
| Preparative | 10 × 250 mm | C8 | 5 µm | 150 Å | SH-090505-010X250 |
| Preparative | 21.2 × 150 mm | C18 | 5 µm | 150 Å | SH-210505-021X150 |
| Preparative | 21.2 × 150 mm | C8 | 5 µm | 150 Å | SH-090505-021X150 |
| Preparative | 21.2 × 250 mm | C18 | 5 µm | 150 Å | SH-210505-021X250 |
| Preparative | 21.2 × 250 mm | C8 | 5 µm | 150 Å | SH-090505-021X250 |
| Preparative | 30 × 150 mm | C18 | 5 µm | 150 Å | SH-210505-030X150 |
| Preparative | 30 × 150 mm | C8 | 5 µm | 150 Å | SH-090505-030X150 |
| Preparative | 30 × 150 mm | C18 | 5 µm | 150 Å | SH-210505-030X250 |
| Preparative | 30 × 250 mm | C8 | 5 µm | 150 Å | SH-090505-030X250 |
| Guard Columns | |||||
| Guard | 4.6 × 10 mm | C18 | 5 µm | 150 Å | SG-210505-004X10N (or D) |
| Guard | 4.6 × 10 mm | C8 | 5 µm | 150 Å | SG-090505-004X10N (or D) |
| Guard | 10 × 10 mm | C18 | 5 µm | 150 Å | SG-210505-010X10D |
| Guard | 10 × 10 mm | C8 | 5 µm | 150 Å | SG-090505-010X10D |
| Guard | 21.2 × 10 mm | C18 | 5 µm | 150 Å | SG-210505-021X10N |
| Guard | 21.2 × 10 mm | C8 | 5 µm | 150 Å | SG-090505-021X10N |