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Table 1 The properties of the solutions utilized to prepare the ballistics gelatin, including the buffer pH and the pH of the solid ballistics gelatin and the gelatin in buffer

From: Factors affecting use of ballistics gelatin in laboratory studies of bacterial contamination in projectile wounds

Solution pH buffer pH gelatin pH buffer/gelatin Buffer composition
RO water 4.6 4.8 N/A N/A
PBS 7.0 4.8 6.5 137 mmol/L NaCl, 2.7 mmol/L KCl, 10 mmol/L Na2HPO4, 1,8 mmol/L KH2PO4
M9 7.0 6.5 7.0 22 mmol/L KH2PO4, 42 mmol/L Na2HPO4, 86 mmol/L NaCl
M63 7.0 6.5 N/A 100 mmol/L KH2PO4, 15 mmol/L (NH4)2SO4, 1 mmol/L MgSO4, 1.7 μmol/L FeSO4
Sodium phosphate pH 8 8.0 7.3 7.8 93 mmol/L Na2HPO4, 7 mmol/L NaH2PO4,
  1. N/A. not available RO water. Reverse osmosis; PBS. Phosphate-buffered saline