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默克Merck 固相萃取系列(Lichrolut®)
默克Merck固相萃取系列(Lichrolut®)
货号：1.19851.0001，固相萃取装置12位 1.19128.0001
Lichrolut®Florisil（150-250um）500mg/6ml30支/包适合食品和环境中有机金属化合物，有机杀虫剂
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.
聚合物基固相萃取 Lichrolut®en 为固相萃取 (SPE) 提供了zei高的 lichrolut®柱容量。特别适用于环境分析中的应用，分析高度污染的样品或高极性有机化合物。具有非常大的比表面积 (大约 1200 m2/g 根据BET-方法), 对极性有机物有优秀的吸附能力，如三嗪, 脲化合物, 苯氧羧酸, 酚,萘酚, 芳香硝基化合物和苯胺。与 Lichrolut®反相C-18 相比, Lichrolut®en 的柱容量高10倍，因此只需200mg吸附剂，足以实现可再生提取和高回收率。
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
| 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) |
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.
A Range of Columns for Reliable Solid-Phase Extraction
LiChrolut® columns for solid-phase extractionLiChrolut® columns are designed for reliable and rapid solid-phase extraction (SPE). This is achieved by using strong but reversible interactions between the analyte and the surface of the stationary phase. A variety of surface modifications allow non-polar extraction (LiChrolut® RP-18 and RP- 18 endcapped), polar extraction (LiChrolut® Si and LiChrolut® CN), cation exchange extraction (LiChrolut® SCX), mixed mode extraction (LiChrolut® TSC), and non-polar extraction on a polymer phase (LiChrolut® EN). The latter is especially suitable for the extraction of pesticides and phenols in water, or drugs in body fluids.
Outstanding Purity and Uniformity
LiChrolut® sorbents offer excellent batch-to-batch consistency. This is due to stringent testing of raw materials and continuous quality controls of the final product. The optimized, validated and certificated production of the sorbents also ensures a high degree of purity and uniformity. The multi-stage purification procedures performed on LiChrolut® materials are particularly valuable for trace analysis. The proportion of elutable components is negligibly small, resulting in purer extracts. As all stationary phases are monitored using the most sensitive analytical methods, very narrow set tolerances can be adhered to.
Features and Benefits
Rapid sample preparation within minutes
Higher recoveries without emulsion formation
Highly precise analytical results using disposable cartridges
Saving of solvent, hence lower material and disposal costs
Possible to automate the entire process
Optimized, validated and certified manufacturing
LiChrolut® Selection Guide
The optimal extraction method depends on the analyte’s structure, solubility, polarity and lipophilic properties (distribution coefficients). The guide below will help you choose the most favorable LiChrolut® column for your application.
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