Spin Column Purification
Spin Column Purification - Related Videos
02:59
Extraction of Viral RNA from Surface-Bound Virions Using a Silica Spin Column
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2026
Source: Klaus, J. P. et al. Highly Sensitive Assay for Measurement of Arenavirus-cell Attachment. J. Vis. Exp. (2016)This video demonstrates the extraction of viral RNA from surface-bound virions on epithelial cells using silica spin columns. The method includes chemical lysis, RNA stabilization, and membrane-based purification for downstream quantification of virus-cell attachment.
09:18
Purification of a Total Lipid Extract with Column Chromatography
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2023
Source: Laboratory of Jeff Salacup - University of Massachusetts Amherst The product of an organic solvent extraction, a total lipid extract (TLE), is often a complex mixture of hundreds, if not thousands, of different compounds. The researcher is often only interested in a handful of compounds. The compounds of interest may belong to one of several classes of compounds, such as alkanes, ketones, alcohols, or acids (Figure 1), and it may be useful to remove the compound classes to which it does...
10:21
Automated Hydrophobic Interaction Chromatography Column Selection for Use in Protein Purification
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Cited by 17 •
2011
An automated method for identifying suitable hydrophobic interaction chromatography (HIC) media to be used in the process of protein purification is presented. The method utilizes a medium-pressure liquid chromatography system including automated buffer blending, dynamic sample loop injection, sequential column selection, multi-wavelength analysis, and split fraction eluate collection.
09:23
Column Chromatography
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2023
Source: Laboratory of Dr. Jimmy Franco - Merrimack College Column chromatography is one of the most useful techniques for purifying compounds. This technique utilizes a stationary phase, which is packed in a column, and a mobile phase that passes through the column. This technique exploits the differences in polarity between compounds, allowing the molecules to be facilely separated.1 The two most common stationary phases for column chromatography are silica gel (SiO2) and alumina (Al2O3), with...
03:07
Column Chromatography - Concepts
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2020
Column Chromatography Multiple techniques exist to purify and separate compounds in an organic chemistry laboratory. One of the most reliable separation techniques for microscale separations, where less than 10 grams of the compound is available for analysis, is column chromatography. This technique separates compounds in a mixture based on their physical properties, such as their solubility, polarity, hydrophobicity, size, and charge. Chromatography Basics The main components of any...
FAQs
Binding depends on the chemical conditions established for the sample and the column matrix. Under the appropriate conditions, the target biomolecule associates with the membrane or resin, while unwanted components remain in the liquid phase and pass through. If those conditions are not maintained, target retention and contaminant removal may be reduced, affecting the quality of the recovered material.
The membrane or resin provides the selective surface that separates the target from a complex mixture. Its interaction with the sample determines which material is retained during centrifugation and which material enters the flow-through. Because different biomolecules can be purified with column systems, the matrix is central to adapting the method for nucleic acids, proteins, or other biological targets.
Washing and elution serve different purposes. Washing removes residual impurities while the target remains associated with the matrix; elution then changes the conditions so the retained material is released into a collection solution. Keeping these stages distinct improves the balance between contaminant removal and target recovery, which is important when the purified sample will enter a sensitive downstream assay.
A typical workflow applies the prepared sample to the centrifuge-compatible column, uses centrifugation to move the liquid through the matrix, and separates the flow-through from retained material. Wash steps follow to remove remaining impurities, and an elution buffer releases the purified target. Each stage depends on defined chemical conditions and careful separation of collected fractions.
Purity can affect both assay performance and interpretation because residual impurities may interfere with reactions or complicate analysis. Spin column purification is therefore useful before PCR, sequencing, cloning, electrophoresis, or protein analysis. In these settings, removing unwanted sample components helps ensure that observed results more accurately reflect the nucleic acid, protein, or other biomolecule being studied.
The method is useful when a laboratory needs a rapid separation step for material in a complex mixture. It provides a shorter alternative to longer workflows while supporting recovery of biomolecules for research and biotechnology applications. Its value is especially apparent when purified material must be prepared efficiently for subsequent molecular biology or protein-focused procedures.