To prepare 1 liter of a 1% solution of glucose: - put 10g of glucose in a 1 liter vial - then, fill the vial with water to the 1 liter mark and shake.

To prepare 1 liter of a 3% solution of pancreatic amylase: - put 30g of pancreatic amylase in a 1 liter vial - then, fill the vial with water to the 1 liter mark and shake.

To prepare 1 liter of a 0.9% solution of sodium chloride: - put 9 g of NaCl in a 1 liter vial - then, fill the vial with water to the 1 liter mark and shake.

To prepare 1 liter of a 1.8% solution of sodium chloride: - put 18 g of NaCl in a 1 liter vial - then, fill the vial with water to the 1 liter mark and shake.