| 摘要 |
PROBLEM TO BE SOLVED: To simplify the piping in an LC-MS with other detectors also used therein, and to improve the accuracy in each measurement. SOLUTION: A flow cell 12 is provided in a sample pipe 11 on the proximal side of a nozzle 14 for spraying a sample solution of an atmospheric ionization unit 2A, and an ultraviolet visible light source unit 20 and an ultraviolet visible absorption detection unit 30 of UV 3 are disposed thereacross. An inlet of an evaporation pipe 52 is provided behind an ion transport pipe 17 which attracts ions from an atomizing chamber 13 and feeds them to a mass spectrometer 40, and a laser beam source part 50 and a light scattering detection unit 56 of an ELSD 4 are disposed outside a light incoming window 53 and a light outgoing window 54 formed in the evaporation pipe 52. The UV 3 and the ELSD 4 are integrated with the mass spectrometer, and pipes and/or splitters for mutual connection are omitted thereby.
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