| 摘要 |
PROBLEM TO BE SOLVED: To provide a sample introduction device which can continuously and automatically supply solvents with various compositions in a sample introduction part of FIA-MS and has a simple channel configuration and a compact and inexpensive structure.SOLUTION: The sample introduction device of the present invention has two syringe pumps, one for solvent feed and the other for sample suction, connected via a valve. Two pumps can be controlled by one driving system by providing a cleaning-fluid channel for a sample-suction pump channel. |
