- 40 bp부터 50 kb까지 DNA를 효율적으로 분리
- TAE 혹은 TBE buffer로 만든 low-melt agarose gel 혹은 standrad gel과 polyacrylamide gel로 부터 gel extraction
- Subsequent reactions에 영향을 주는 sodium iodide 없음
- Large DNA fragments의 손상 없음
The QIAEX II Gel Extraction Kit provides a suspension of silica particles to which DNA fragments bind in the presence of chaotropic salts. QIAEX II Suspension is added to solutions or solubilized agarose gel slices and binds DNA. The particles are collected by a brief centrifugation, washed, and DNA from 40 bp to 50 kb is eluted in Tris buffer or water.