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  • Title: Quantitative liquid chromatography tandem mass spectrometry analysis of macromolecules using signature peptides in biological fluids.
    Author: Halquist MS, Thomas Karnes H.
    Journal: Biomed Chromatogr; 2011 Jan; 25(1-2):47-58. PubMed ID: 21154882.
    Abstract:
    Targeted protein quantification using peptide surrogates has increasingly become important to the validation of biomarker candidates and development of protein therapeutics. These approaches have been proposed and employed as alternatives to immunoassays in biological fluids. Technological advances over the last 20 years in biochemistry and mass spectrometry have prompted the use of peptides as surrogates to quantify enzyme digested proteins using triple quadrupole mass spectrometers. Multiple sample preparation processes are often incorporated to achieve quantification of target proteins using these signature peptides. This review article focuses on these processes or hyphenated techniques for quantification of proteins with peptide surrogates. The most recent advances and strategies involved with hyphenated techniques are discussed.
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