I am using this buffer to preserve blood cells for long term storage.
The buffer contains the following: 100 mM Tris, 100 mM EDTA, 10 mM NaCl, and 0.5% SDS.
From the literature it seems that EDTA should not affect methylation patterns. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5813389/
Does anyone know what to expect for SDS, Tris, or NaCl?