Chromatography, including liquid and gas chromatography, is a staple tool in biological research. Preparative chromatography is used in the purification of proteins, antibodies, pharmaceuticals, bioactive compounds, and even cell populations. Meanwhile, analytical chromatography enables the measurement of target analytes and also the discovery of new compounds. Products in the scope of the chromatography application include packed (or empty) columns, chromatography media like resins or beads, filtration and concentration devices, kits, and accessories. The chromatography mode is the physical or chemical means of separation, such as via affinity binding, ionic interactions, hydrophobicity, or size exclusion. Use the provided filters to help navigate our extensive catalog of chromatography tools and reagents.
Size exclusion spin columns are an invaluable tool for purifying and separating nucleic acids or proteins. They can be used to prep DNA, RNA or protein samples for many protocols, particularly those involving PCR, sequencing, or protein recovery. Spin columns can be used for basic prep steps like desalting or buffer exchange, and can also be used to concentrate proteins or clean up a dirty sample. Specialized spin columns can also be used for labeled nucleic acids, such as those labeled with fluorescent dyes or radioisotopes. Spin columns are typically compatible with standard centrifuge tubes. Quality is a crucially important consideration in choosing a spin column, since your precious sample will pass through it, and its purity will depend on the performance and integrity of the column.