| 摘要 |
PROBLEM TO BE SOLVED: To provide a nozzle to which plural types of disposable nozzle chips in different diameters can be placed without replacing a pipetter or nozzle. SOLUTION: A nozzle chip is mounted to the nozzle of a liquid drawing and ejecting device to draw and eject a liquid sample. Here, the mounting part of a nozzle chip is formed in multi-levels. A nozzle chip with a small- diameter opening can be mounted to a mounting part 1 at the further tip of the nozzle, and a nozzle chip with a larger-diameter opening in comparison with the nozzle chip with a small-diameter opening can be placed to a mounting part 2 at a further base part of the nozzle. The mounting part of a nozzle chip has a circular cross section, and the mounting parts 1 and 2 of each nozzle chip constituted in multi-levels are preferably tapered, become thinner toward their ends. |
