| 摘要 |
An ionizing device 2 includes an ionization chamber 2a having an ionization space 2b for ionizing sample molecules A, filaments 23a and 23b to have an electron impact on the sample molecules A in the ionization space 2b, to ionize the sample molecules A, and an electric discharge tube 29 to irradiate the sample molecules A in the ionization space 2b with ultraviolet light, to ionize the sample molecules A.
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