| 摘要 |
The invention provides extraction columns for the purification of an analyte (e.g., a biological macromolecule, such as a peptide, protein or nucleic acid) from a sample solution, as well as methods for maintaining the columns in a wet state. The columns typically include a bed of extraction media positioned in the column between two frits. In some embodiments, the extraction column body is comprised of a modified pipette tip. |
