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Abstract:
Matrix-assisted laser desorption/ionization (MALDI) mass spectrometry has become an important analytical technique in nucleic acid research. MALDI is used for quality control of oligonucleotides as well as for analyzing DNA markers. Sample preparation of nucleic acids is crucial for obtaining high-quality mass spectra. Sample purity, solvent content, suitable matrices, and substrate surfaces, as well as laboratory conditions affect spectra quality. This review presents essential information with regard to sample preparation, DNA modification chemistry, and DNA purification, along with a discussion of instrumental advances, which facilitate and extend the applicability of MALDI in genomics.
