Integration of On-Column Chemical Reactions in Protein Characterization by Liquid Chromatography/Mass Spectrometry: Cross-Path Reactive Chromatography
- Award ID(s):
- 1709552
- PAR ID:
- 10054096
- Date Published:
- Journal Name:
- Analytical Chemistry
- Volume:
- 90
- Issue:
- 2
- ISSN:
- 0003-2700
- Page Range / eLocation ID:
- 1348 to 1355
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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Immunoaffinity chromatography (IAC) is a type of liquid chromatography that uses immobilized antibodies or related binding agents as selective stationary phases for sample separation or analysis. The strong binding and high selectivity of antibodies have made IAC a popular tool for the purification and analysis of many chemicals and biochemicals, including proteins. The basic principles of IAC are described as related to the use of this method for protein purification and analysis. The main factors to consider in this technique are also presented under a discussion of the general strategy to follow during the development of a new IAC method. Protocols, as illustrated using human serum albumin (HSA) as a model protein, are provided for the use of IAC in several formats. This includes both the use of IAC with traditional low‐performance supports such as agarose for off‐line immunoextraction and supports used in high‐performance IAC for on‐line immunoextraction. The use of IAC for protein analysis as a flow‐based or chromatographic immunoassay is also discussed and described using HSA and a competitive binding assay format as an example.more » « less
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