Chengjie Ji

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mass spectrometry small molecules oligonucletides protein peptides quantitative qualitative hydrogen deuterium exchange mass spectrometry biotechnology research therapeutic discovery bioanalysis analytical characterization oligonucleotide quantification small molecule bioanalysis metabolite profiling epitope mapping genetherapy hcp analysis analytical method development ind filing regulatory compliance structural elucidation charge variant analysis forced degradation impurity profiling biomarker analysis adme assays reference standard characterization liquid chromatography lc-ms/ms lc-hrms elisa metabolite quantification small molecule biomarker assays in vivo biotransformation n-glycosylation o-glycosylation de novo sequencing analytical development biopharmaceutical research drug discovery clinical trial support protein characterization therapeutic proteins vector production quantitative analysis hybridization assays multiplexed workflow tissue analysis critical therapy advancement biotech solutions pharmaceutical services analytical separation techniques laboratory services precision analytics collaborative research innovative methodologies