| 摘要 |
PURPOSE:To rapidly and accurately perform metering and solution-preparing work with high reliability, by precisely metering a roughly charged powdery stock material and directly disolving the same in a liquid or preparing a solution before diluting the same. CONSTITUTION:A powdery stock material is charged one at a time by manual operation using a metering spoon 1 while a weighed beaker 2-2 is transferred to a liquid injecting position by rotating a turntable and a definite amount of liquids are supplied from a quantitative liquid supply devices 10-1-3 to dissolved or disperse the powdery stock material by a magnetic stirrer 9 and a stirrer 3-2. In addition, a necessary amount of a calculated liquid is poured into a roughly preparing beaker 2-5 at the pouring port of a quantitative pump 11 to adjust the solution to a predetermined concn. By this method, artificial work is reduced to a large extent and metering and solution-preparing work with high reliability is performed. |
