I have human cells that I've digested in proteinase K and I'm about to precipitate the glycosaminoglycans in the sample using ethanol, but as I understand it this will also precipitate any nucleic acids in the sample as well (I use a volume of ethanol 4x that of the sample). How would I separate the nucleic acids from the GAGs at this point? I would like to quantify the DNA from the samples to use for normalization of GAG quantification data. Thank you in advance!