Nucleic acid extraction appratus and operation method thereof

An apparatus for nucleic acid extraction comprising:

• a first rack having a plurality of sample tube receivers arranged in a circle;
• a second rack having a plurality of elution tube receivers arranged in a circle and a washing solution receiver defined at the center thereof, a part of the washing solution receiver having a plurality of grooves arranged in alternation with the plurality of elution tube receivers;
• a main body having the first rack on the second rack;
• a rotational driver rotating the first racks and the second rack, synchronously or separately;
• a dispenser dispensing a washing solution and an eluting solution into the plurality of sample tubes, respectively;
• and
• a pressurizer pressurizing the plurality of sample tubes.

An operation method for a nucleic acid extraction apparatus, the operation method comprising:

• rotating at least one of a first rack and a second rack so that a plurality of sample tubes in a first rack corresponds to a washing solution receiver of the second rack, wherein the plurality of sample tubes receive a sample solution containing nucleic acids and impurities, the nucleic acids being absorbed onto a filter member in the plurality of sample tubes;
• performing a washing operation while rotating the first rack and the second rack to have a synchronous rotation;
• rotating at least one of a first rack and a second rack so that a plurality of sample tubes in a first rack corresponds to a plurality of elution tubes in the second rack;
• and
• performing an eluting operation while rotating the first rack and the second rack to have a synchronous rotation.

An apparatus for nucleic acid extraction comprising:

• a first rack having a plurality of sample tube receivers arranged in a circle;
• a second rack located under the first rack and having a plurality of elution tube receivers corresponding to the plurality of sample tube receivers, wherein the second rack defines a washing solution receiver therein to receive a fluid, wherein the washing solution receiver includes a plurality of grooves arranged in alternation with the plurality of elution tube receivers;
• a rotational driver rotating the first racks and the second rack, synchronously or separately;
• a dispenser dispensing a washing solution and an eluting solution into the plurality of sample tubes, respectively;
• and
• a pressurizer pressurizing the plurality of sample tubes.