The present invention relates to a gas chromatography-electrospray / high-resolution mass spectrometer and a method for ionizing a gaseous organic compound using the same, and more particularly, to a gas chromatograph-electrospray / high-resolution mass spectrometer, The present invention relates to a gas chromatograph-electrospray / high-resolution mass spectrometer capable of performing an analysis, and a method for efficiently ionizing gaseous organic compounds using the same.
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