| 摘要 |
PCT No. PCT/SE92/00151 Sec. 371 Date Nov. 29, 1993 Sec. 102(e) Date Nov. 29, 1993 PCT Filed Mar. 11, 1992 PCT Pub. No. WO92/15597 PCT Pub. Date Sep. 17, 1992.The present invention relates to an extraction device and a method of using such an extraction device. The extraction device, includes exchangeable reaction vials (2A, 2B, 2C) and a housing (3) having at least one longitudinally arranged capillary (12) therein. A reaction vial (2A, 2B, or 2C) and housing (3) being constructed to engage and form a closed system communicating the capillary (12) with the interior of a reaction vial (2A, 2B, or 2C). The method of using the closed extraction device involved denaturing a sample containing nucleic acid in a reaction vial followed by engaging the reaction vial to the housing and centrifuging the closed unit to allow a nucleic acid-binding medium to bind the nucleic acid. Exchangeable reaction vials (2A, 2B, 2C) containing a washing buffer and a medium causing dissociation of bound nucleic acid from the nucleic acid-binding medium are sequentially exchanged with the reaction vial engaged with the housing in order to wash the bound nucleic acid, or to dissociate the nucleic acid and bring it into solution. |
