Plasma PCSK9 measurement by liquid chromatography-Tandem mass spectrometry and comparison with conventional ELISA
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文摘
An LC–MS/MS method was successfully validated for PCSK9 quantification in plasma. The method is based on trypsin proteolysis and the subsequent analysis of a proteotypic peptide. Optimization of SPE clean up allowed to avoid sample concentration by immunoafinity before proteolysis.

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