Purification apparatus and method of controlling purification apparatus
AssigneeShimadzu Corporation
InventorYoshio IKEZAWA
Life of this patent
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Abstract
In a container, a sample is separated with a heavy solution based on a specific gravity. An overflow pipe is a pipe provided at an upper portion of the container, the overflow pipe being arranged to cause a supernatant containing a target substance separated by gravity separation in the container to overflow from the upper portion of the container. A control device controls entry and exit of the heavy solution into and from the container. The control device causes some of the supernatant produced by gravity separation to flow over the container through the overflow pipe, thereafter causes the supernatant that remains in the overflow pipe to flow back into the container, and then causes the supernatant to flow over again through the overflow pipe.
Claims7
A purification apparatus that purifies a sample containing a target substance by gravity separation, the purification apparatus comprising:
- a container in which the sample is separated with a heavy solution based on a specific gravity;
- an overflow pipe provided at an upper portion of the container, the overflow pipe being arranged to cause a supernatant containing the target substance separated by gravity separation in the container to overflow from the upper portion of the container;
- and
- a control device that controls entry and exit of the heavy solution into and from the container, wherein
- the control device is further configured to cause some of the supernatant produced by gravity separation to flow over the container through the overflow pipe, thereafter cause the supernatant that remains in the overflow pipe to flow back into the container, and then cause the supernatant to flow over again through the overflow pipe.
A control method performed by a control device in a purification apparatus, the purification apparatus including a container in which a sample containing a target substance is separated with a heavy solution based on a specific gravity, an overflow pipe provided at an upper portion of the container, the overflow pipe being arranged to cause a supernatant containing the target substance separated by gravity separation in the container to overflow from the upper portion of the container, and a control device that controls entry and exit of the heavy solution into and from the container, the control method comprising:
- causing some of the supernatant produced by gravity separation to flow over the container through the overflow pipe;
- causing the supernatant that remains in the overflow pipe to flow back into the container;
- and
- causing the supernatant that has flowed back to flow over again through the overflow pipe.
Dependencies are inferred from the claim text.