Protein mixture analysis by MALDI/mobility/time-of-flight mass spectrometry
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abstract
Progress in the development of ion mobility (IM) orthogonal time-of-flight (oTOF) mass spectrometry for rapid analysis of biological samples is presented. The IM-oTOF apparatus described consists of a short drift tube (1 to 15 cm) designed for ion mobility measurement in the low-field limit and a low resolution linear (20 cm) TOF mass spectrometer. Proof of concept is demonstrated by analysis of peptide mixtures generated by proteolytic digestion of proteins.
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Advances in Nucleic Acid and Protein Analyses, Manipulation, and Sequencing