Cryo: Difference between revisions

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== Salts as precipitants ... ==
== Salts as precipitants ... ==


Some salts may also serve as cryoprotectants: malonate, formate, ammonium sulfate (at >3.5 M), lithium sulfate, and perhaps others.  Anything with a flat solubility vs temperature is a good candidate.  Mixing of different cryos can often have a superior protective effect to single-component cryos of the same total concentration (the "confusion principle"), so there are a lot of combinations to try.  
Some salts may also serve as cryoprotectants: malonate (see Acta Cryst D59, 2356), formate, ammonium sulfate (at >3.5 M), lithium sulfate, and perhaps others.  Anything with a flat solubility vs temperature is a good candidate.  Mixing of different cryos can often have a superior protective effect to single-component cryos of the same total concentration (the "confusion principle"), so there are a lot of combinations to try.


== See also ==
== See also ==
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