Product composition: Preparation of tube C, 2.0 mL collection tube, 1.5 mL centrifuge tube, gel-melting agent D-A, binder D-B, washing solution W1, washing solution W2, elution buffer E
product presentation: This product achieves efficient purification of target DNA fragments through three critical steps: binding, washing, and elution. During the binding phase, agarose gel slices are dissolved in high-salt buffer to allow DNA-specific adsorption onto the silica membrane. Subsequently, impurities such as nucleic acid dyes, proteins, and salts are removed via centrifugation or vacuum filtration. Finally, the purified DNA is eluted from the membrane using low-salt buffer or water, yielding high-purity DNA fragments suitable for subsequent molecular biology applications.