| 摘要 |
Titration assembly, especially for mass analysis, has a vessel (2) to contain the sample solution (3) and a tube pump has its capillary end immersed in the solution during titration, to give a defined feed of a standard solution from a supply container. The liquid is agitated by a stirrer (20) in the direct vicinity of the stand solution outflow opening in the vessel, to break down droplets before they can form spontaneously. During titration, the vessel and/or the supply container are weighed. The assembly has an automatic sample change system with a carrier arm (30) and a moving section (31), coordinated with the lift mechanism. In the start position, the lift is in the upper position (B) for the carrier arm and moving section to place the sample vessel on the weighing dish (10). It is then lowered for the end of the capillary and the measurement electrode (11) to be immersed in the sample. |
