On-line duplex molecularly imprinted solid-phase extraction for analysis of low-abundant biomarkers in human serum by liquid chromatography-tandem mass spectrometry
Journal of Chromatography A(2021)
Abstract
•Determination of two low-abundant small cell lung cancer biomarkers.•Molecularly imprinted polymers (MIPs) targeting tryptic peptides.•MIPs combined for duplex on-line extraction prior to LC MS/MS.•Target peptides successfully captured from trypsin-digested human serum.•Improved extraction performance compared to single-plex methods.
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Key words
On-line SPE,Multiplexing,Molecularly imprinted polymers,LC-MS/MS,Low-abundant biomarkers,Targeted bottom-up proteomics
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