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Spinette cell stirrer Spinette cell stirrers offer the ability to simultaneously measure and stir the contents of speciall y design ed cells (MS). Mixing of solu tions is with a tiny magnetic st ir bar placed into a purpose made well at the bottom of the cell. A small electronic coil rotation assembly is placed under the cell in the sample compartment. This raises the cell by 5mm which, without affecting instrument operation, may also reduce the required sample volume. The Spinette will fit all standard spectro photometers cell holders. The speed of rotation can be adjusted with the controller which is connected to the electronic magnet by thin ribbon wire one metre in length. This will not interfere with insertion or removal of cells from the sample compartment and will also allow instrument covers to close normally.
Magnetic s tir bars are available to fit the specially designed MS range of cells with stirring wells . When purchasing stir bars separately for use with micro cells, the correct size must be selected. One stir bar is included with each MS cell. Typically, a cell filled with aqueous solution up to 30mm from the base, may be fully mixed within five seconds. The Spinette cell stirrer is supplied complete with speed controller, electron ic rotation platform, ribbon wire and one stir bar.