QIAEX II Gel Extraction Kit. For purification of DNA fragments (40 bp to 50 kb) from gels and solutions. Kit contents: Qiagen QIAEX II Gel Extraction Kit, 150 Extractions, 20L Elution Volume, 5g/10L Binding Capacity, DNA Sample, Tube Format, Silica Technology, Manual Processing, 40 bp to 50 kb Fragment, Ideal for Restriction Digestion, Labeling, Ligation, PCR, For Purification of DNA Fragments from Gels and Solutions, Includes 3 x 0.5mL QIAEX II Suspension, Buffers. Benefits: Efficient extraction of DNA from 40 bp to 50 kb. Gel extraction from TAE or TBE agarose gels and polyacrylamide gels. No sodium iodide to interfere with subsequent reactions. No shearing of large DNA fragments