| Literature DB >> 30192519 |
Yuchao Chen1, Pan Mao1, Daojing Wang1.
Abstract
Direct quantitation of proteins in complex biological matrices by mass spectrometry remains a challenge. Here, we describe a novel top-down parallel reaction monitoring-mass spectrometry (PRM-MS) assay, enabled by microflow LC-nanospray MS using a silicon microfluidic LC-MS chip. We demonstrated direct analysis of intact proteins such as somatropin in human plasma, achieving sensitivity (0.1-1.0 fmole) and speed (1-5 min) on par with enzyme-linked immunosorbent assay (ELISA).Entities:
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Year: 2018 PMID: 30192519 PMCID: PMC6143396 DOI: 10.1021/acs.analchem.8b02699
Source DB: PubMed Journal: Anal Chem ISSN: 0003-2700 Impact factor: 6.986