| 摘要 |
PROBLEM TO BE SOLVED: To provide the washing mechanism of a sampling nozzle for securely eliminating a residue causing carry-over. SOLUTION: In the washing mechanism of a sampling nozzle 1, a washing liquid is supplied into a washing pot 5 for washing a tip part 3 while the tip part 3 of the sampling nozzle 1 for quantitative injection is being inserted into the washing pot 5. In the washing mechanism, a small-diameter part 9 that matches the shape of the tip side of the sampling nozzle 1 is formed in the washing pot 5 and at the same time a washing liquid is supplied to the small- diameter part 9. Also, the washing liquid is sucked and delivered from the thin-diameter part 9 or a position that is lower than it. |
