| 摘要 |
<p>The specification discloses a device for centrifuging liquids and a means for analysing or processing sets of liquid samples and comprising an aforementioned device. More particularly, it relates to a device for centrifuging liquids containing particles or cells in suspension. The invention provides a liquid-centrifuging device which is free from the need for a vertical axis of rotation. The centrifuging device is characterised in that the vessel for holding the liquid to be centrifuged has a shape and is made of a material such that the liquid therein is kept inside it by the action of electrostatis forces even if the vessel is not rotating and its orifice is facing downwards. As a result, the vessel can be disposed in an invariable position relative to the axis of rotation. This invariable position is the position for centrifuging, i.e. at which the free surface of the liquid in the vessel faces the axis of rotation. The axis of rotation may be in any direction but is preferably horizontal. Preferably the edge of the orifice is continued, at an angle to the vessel wall and outside it, by a collar or the like in one piece with the rest of the vessel, and the flange between the collar and the vessel is at an acute angle or has a small radius of curvature. According to another feature the same result (i.e. of holding or retaining the liquid in the vessel) can be obtained by using a vessel, having a shape and made of material such that the liquid sample therein is kept inside it by the action of surface tension forces, even when the vessel is not rotating and its orifice is facing downwards.</p> |
