Extraction column | Typical sample matrix | Typical sample analytes | Typical elution solvent | |
---|---|---|---|---|
Non-polar extraction |
LiChrolut® RP-18 LiChrolut® RP-18e (endcapped) LiChrolut® CN | Aqueous buffer solution | Aqueous buffer solution, aromatic ring systems, compounds with alkyl chains, aromatic ring systems | Acetonitrile, methanol, ethyl acetate |
Polar extraction | LiChrolut® Si LiChrolut® CN | Hexane, oils, chlorinated hydrocarbons | Hydroxyl groups, amines, compounds with hetero atoms (S,N,O) | Methanol, 2-propanol |
Cation exchange extraction | LiChrolut® SCX (strong) | Methanolic/aqueous buffer with low ionic strength; 2 pH units under pK value of the sample analyte |
Cations: amines, pyrimidines | Aqueous buffer of high ionic strength (0.1 mol/l); 2 pH units over pK value of the sample analyte |
Mixed mode extraction | LiChrolut® TSC | Body fluids** | Cationic and neutral analytes | Chloroform-acetone, ammoniated ethyl acetate or ammoniated methanol |
Anion exchange extraction | LiChrolut® SAX (strong) | Methanolic/aqueous buffer with low ionic strength; 2 pH units under pK value of the sample analyte |
Anions: carboxylic acids, sulfonic acids, phosphates | Aqueous buffer of high ionic strength (0.1 mol/l); 2 pH units over pK value of the sample analyte |
Non-polar extraction on a polymer phase | LiChrolut® EN | Drinking, ground and surface water | Polar contaminants, e.g. pesticides, phenols, explosives, anilines | Ethyl acetate, methanol, acetonitrile: methanol (1:1) |
Non-polar extraction on a polymer phase | LiChrolut® EN | Body fluids** | APIs (active pharmaceutical ingredients) | Acetonitrile, methanol |
Medium polar extraction of environmental pollutants | Florisil® | Waste / ground / drinking water, soil samples | Herbicides, pesticides, PCBs, PCPs, dioxins, phenols, nitro compounds, HCHs | n-Hexane, dichloromethane |
**These products are not intended for use as in-vitro diagnostics in terms of European Directive 98/79/EC. They are for research purposes only, for investigating in-vitro samples derived from the human body without any medical objective.