TEST TUBE, DEVICE COMPRISING TEST TUBE AND LIQUID TREATMENT METHOD BY USING SAME

摘要

A test tube (10) used for liquid mixing and extracting operations is provided. The test tube (10) comprises an opening (12) for adding and withdrawing liquids, a near end portion (13) adjacent to the opening (12), and a far end portion (14) for mixing liquids and performing physicochemical reactions, wherein the near end portion (13) can be repeatedly switched between squeeze-to-shut state and loose-to-open state. A device for parallelly mixing and extracting a plurality of liquid samples is also provided. The device comprises the test tube (10). Furthermore, methods for mixing and extracting liquids by using the test tube (10) and the device are also provided. The test tube (10) and the device can conveniently and effectively overcome cross-contamination problem of liquids during mixing and extraction, and contribute to achieve automatic high flux operation of the liquid mixing and extraction processes. The test tube (10) and the device are particularly suitable to separate and detect target substances, e.g. nucleic acid, from biological samples.