Scientech SA-Series Analytical Balances

fficient Gel Extraction and PCR Clean-up

The Gel/PCR DNA Fragments Extraction Kits are designed to recover or concentrate DNA fragments (50bp-10kb) from agarose gel, PCR reaction, or any other enzymatic reaction. This method uses a chaotropic salt and guanidine thiocyanate to dissolve the agarose gel and denature the enzymes. The DNA fragments in the chaotropic salt are bound to the glass-fiber matrix of the spin column. After washing off the contaminants, the purified DNA fragments are eluted by low salt elution buffer or water. Salts, enzymes, and unincorporated nucleotides can be effectively removed from the reaction mixture without phenol extraction or alcohol precipitation.