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Makoto Hatakeyama, Takako Mashiko, Hisanao Hazama, Kunio Awazu and Masanori Tachikawa Theoretical analysis of correlation between ionization threshold fluence in IR-MALDI and IR absorption spectrum of matrix molecules International Journal of Quantum Chemistry 113

Article first published online: 24 JUL 2012 | DOI: 10.1002/qua.24296

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Matrix-assisted laser desorption/ionization by infrared laser (IR-MALDI) is a very promising techniques for selective soft ionization of biomolecules. Density functional theory and second-order Møller-Plesset perturbation theory can help clarifying the dependence of the IR absorption spectra on the state of the matrix molecules, such as crystal solid structure and gas phase.

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