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The increasing number of bioconjugates used for bioanalytical purposes and in pharmaceutical industries has led to an increasing demand for robust quality control of products derived from covalently linking small molecules to proteins. Here we report, for the first time, a matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF)-based method to determine the quantity and location of...
The ideal MALDI/LDI mass spectrometry sample target for an axial TOF instrument possesses a variety of properties. Primarily, it should be chemically inert to the sample, i.e. analyte, matrix and solvents, highly planar across the whole target, without any previous chemical contact and provide a uniform surface to facilitate reproducible measurements without artifacts from previous sample or matrix...
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