I have a question about RNAase DNAase free process, i have a BSA but i dont know its RNAase or DNAase free and i want use it as a PCR additive, is there any way to make it RNAase DNAase free? or if it was in lab for one year,its now RNAase DNAase free by it self? anyone knows about this? i will be thankfull for any help