| 摘要 |
PROBLEM TO BE SOLVED: To provide a detection apparatus and method for organic trace components capable of quick analysis at high sensitivity. SOLUTION: The detection apparatus includes: a capillary column 54 serving as a sample introduction means for continuously introducing a leaking molecular beam 53 into a vacuum chamber 52 as a sample 51, a laser beam application means 54 for applying a laser beam 55 to the leaking molecular beam 53 for laser ionization; an ion converging part 56 consisting of a plurality of ion electrodes 56-1 to 3 for converging the molecules laser ionized, an ion trap 57 for selectively enriching the converged molecules, and a time-of-flight mass spectrometer 60 having an ion detector 59 for detecting ions emitted at predetermined intervals and reflected by a reflection 58. The timing for ionizing the sample 51 is synchronized with the period of the high-frequency electrode of the ion trap 57 and the ionized molecules are selectively trapped by the ion trap 57.
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