| Sorbent | Applications | Uses |
|---|---|---|
| Octadecyl (ODS) | Reversed-phase extraction of non-polar compounds | Drugs, oils, food preservatives, vitamins, plasticizers, pesticides, and hydrocarbons in question extracts |
| Octyl | Reversed-phase extraction of moderately polar compounds and compounds too strongly absorbed by octadecyl | Priority pollutants, pesticides in aqueous extracts. |
| Phenyl | Reversed-phase extraction of non-polar compounds. Provides less retention of hydrophobic compounds | Not widely used |
| Cyanopropyl | Normal phase extraction of polar compounds | Amines, alcohols, dyes, vitamins, phenols from aqueous or organic extracts |
| Silica | Adsorption of polar compounds | Drugs, alkaloids, mycotoxins, amino acids, flavonoids, heterocycles, lipids, steroids, organic acids, terpenes, vitamins, from organic extracts. |
| Diol | Normal phase extraction polar compounds (similar to silica) | Proteins, peptides, surfactants from organic extracts. |
| Aminopropyl | Weak anion exchange extraction | Carbohydrates, peptides, nucleotides, steroids, vitamins. |
| Quarternary amines | Strong anion-exchanges extractions | Antibiotics, nucleotides, nucleic acids for aqueous or organic extracts. |
Reference: Trace Analysis A Structured Approach to Obtaining Reliable Results By Peter Bedson, Namik K. Aras, Mike Sargent, Peter W. Shallis