Abstract

A simple method is described for the extraction of high quality DNA for PCR amplification. The DNA was extracted by using Chelex-100 ion exchange resin or a special cell lysis buffer containing proteinase K. For further purification the DNA was bound to silica in the presence of a chaotrophic agent. Hence it is possible to unlimitedly wash the bound DNA and inhibitory substances are removed. By using diatoms as a source of silicates, this method is very economical and can therefore be used as a routine method.

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