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. 2022 Mar 9;3(1):101201. doi: 10.1016/j.xpro.2022.101201
L-glutamine solution (100 mL) Final concentration Amount
L-glutamine 200 mM 2.923g
NaCl 0.85% 0.85g

Add ddH2O to 100 mL. The pH is ∼5.5. Filter the final solution using 0.1 micron Mini Kleenpak filter. Store at −20°C for up to 1 year. Thaw at 37°C water bath just before supplementing DMEM media.