Shipping: shipped at ambient temperature
Storage Conditions: store at 8-10 °C
Shelf Life: 12 months
JBScreen Buffers Xtreme contain common buffer stocks (0.5 M concentration) in the extreme pH ranges (3.0 - 5.5 and 8.5 - 11.0) in useful 0.5 pH unit increments.
MIB buffer is produced by mixing Malonic acid:Imidazole:Boric acid in the molar ratios 2:3:3. SPG buffer is produced by mixing Succinic acid:Sodium dihydrogen phosphate:Glycine in the molar ratios 2:7:7. These 'Super Buffers' screen the pH range from 4.0 to 10.0 without changing the chemical composition of the buffer solution.
Newman (2004) Novel buffer systems for macromolecular crystallization. Acta Cryst. D 60:610.