- LiChrolut® EN (40 - 120 µm) for solid phase extraction in environmental analysis
- LiChrolut® EN (40 - 120 µm) 100 mg (bottom) LiChrolut® RP-18 (40 - 63 µm) 200 mg (top) 6 ml standard PP-tubes 30 pieces
- LiChrolut® EN (40 - 120 µm) 200 mg 3 ml standard glass tubes 30 pieces
- LiChrolut® EN (40 - 120 µm) 200 mg 6 ml standard PP-tubes 30 pieces
- LiChrolut® EN (40 - 120 µm) 500 mg 6 ml standard PP-tubes 30 pieces
- LiChrolut® EN 200 mg 3 ml standard PP-tubes 30 pieces
- Adapter (PTFE) Luer inlet for solvent reservoir, for LiChrolut® columns of various sizes
- Disposable PTFE liner for LiChrolut® vacuum manifold
- Enrichment capillaries for large-volume samples
- Frits (PTFE) for 3 ml glass columns, porosity 10 µm LiChrolut®
- Glass columns (empty) 3 ml compatible with SPE robot systems LiChrolut®
- LiChrolut® Drying unit for sample preparation
- Vacuum manifold for sample preparation LiChrolut®
- Exit cannulas for EXtrelut® NT 1 and EXtrelut® NT 3
LiChrolut® EN |
Polymer-Based Solid-Phase Extraction
LiChrolut® EN offers the highest capacity for solid-phase extraction (SPE) of all LiChrolut® cartridges. The cartridge was especially developed for applications in environmental analysis where highly contaminated samples or very polar organic compounds should be analyzed. Due to their extremely large specific surface (approximately 1,200 m2/g according to the BET-method), the columns offer excellent adsorption capacity for polar organic substances, such as triazines, phenylurea compounds, phenoxycarboxylic acids, phenols, naphthols, aromatic nitro compounds and anilines. In comparison to LiChrolut® RP-18, LiChrolut® EN has a tenfold higher capacity. Thus, only 200 mg of sorbent are sufficient for reproducible extractions and high recovery rates.
Features and Benefits
- Use of common organic solvents, buffer solutions, acids and bases over the entire pH range
- Saving of solvent, as little solvent is required for conditioning and elution of the cartridge bed
- Time saving, as less adsorbent requires less time for conditioning and drying
- Improved analysis, as the reduced quantity of solvent required for elution leads to a lower degree of contamination and to an increase in detection sensitivity
LiChrolut® EN Specifications
| Sorbent type | Ethyl vinyl benzene divinyl benzene polymer (orange) |
|---|---|
| Particle shape | Irregular |
| Particle size distribution | 40 - 120 μm |
| Specific surface | 1200 m2/g (according to BET) |
| Pore volume | 0.75mL/g |
| Stability | pH 1 to pH 13 |
| Capacity | 500 mg Caffeine/g sorbent (model substance for polar analytes) 500 mg Diisodecylphthalate DIDP/g sorbent (model substance for nonpolar analytes) |
Capacity of LiChrolut® EN vs. to LiChrolut® RP Phases
In comparison to commonly used C-18 sorbents, LiChrolut® EN offers at least 10 times higher sorbent capacity. This means that only 200 mg of LiChrolut® EN are necessary for complete enrichment of different trace contaminants from water.
