| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for isolating and obtaining a nucleic acid by rapidly and simultaneously removing cesium chloride and ethidium bromide existing in high concentration in the nucleic acid solution separated after centrifugation in a nucleic acid purification method using cesium chloride-ethidium bromide equilibrium density-gradient centrifugation. SOLUTION: The method for isolating and obtaining a nucleic acid from a solution containing cesium chloride, ethidium bromide and nucleic acids comprises a step (1) of bringing the solution containing cesium chloride, ethidium bromide and nucleic acids into contact with one or more kinds of Ag<SP>+</SP>-type zeolite, and a step (2) of collecting a non-adsorbed fraction in Ag<SP>+</SP>-type zeolite. COPYRIGHT: (C)2009,JPO&INPIT
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