| 摘要 |
PURPOSE:To exchange a leak member, by provding an opening part to a partition between the second vessel communicated to a spectrometer main unit and the first vessel and supporting the leak member to the opening part while removably further airtightly mounting supporting members having a communication part. CONSTITUTION:A sample introducing port 3 of a vessel 2 is connected to a sample introducing tube 1, and a valve mechanism 10 is mounted to the vessel 2. A vessel 5 is integrally formed with the vessel 2 through a partition 4. A sample lead out port 6 is provided to the vessel 5 and connected to an ionizing chamber 8 provided to a mass spectrometer 7. An opening part 5a is provided to a position of the vessel 5 oppositely facing to the partition 4, and supporting members 21, 22 supporting a capillary 9 used as a leak member are mounted. A hollow 22a communicated to a hollow 9a of the capillary 9 is formed to the supporting member 22, while a groove 21a communicating the hollow 22a to the vessel 5 is formed to the supporting member 21. Furhter O-rings 23, 24 are inserted between the supporting member 21 and the vessel 5 and the supporting member 22 and the partition 4, and the vessel 5 is airtightly sealed. In consequence, the capillary 9 can be easily exchanged. |
