To quantify peptide conjugation efficiency, 20?l beta-mercaptoethanol (14.3?M stock solution) and 20?L DMF were added to an aliquot (0.1?mg in 60?l H2O) of purified MUSOT-peptide conjugates and allowed to react for 48?h on a shaker at 25?C. plasma mass spectrometry (LA-ICP-MS) enables quantitation of metallic contents in the single-cell level with additional insights on sub-cellular…

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