Designed for the rapid purification and concentration of PCR products or DNA fragments ranging in size from 50 bp to 10 kb. This kit can be used to purify DNA from reaction volumes up to 100 mu or agarose gel slices up to 900 mg.illustra(TM) GFX(TM) PCR DNA and Gel Band Purification Kit is designed for the rapid purification and concentration of PCR products or DNA fragments ranging in size from 50 bp to 10 kb. This kit can be used to purify DNA from reaction volumes up to 100 mu or agarose gel slices up to 900 mg. The kit combines a versatile chaotropic buffer with a glass fiber matrix supported in a spin column for the purification of DNA from both SOLUTIONon and agarose gel. Typical recoveries range from 60% to 80% for DNA fragments from agarose gel to as high as 95% for PCR products from SOLUTIONon.