Preparation of Magnesium Standard Solution
Dissolve magnesium sulfate equivalent to 1.010 g of MgSO4,7H2O in distilled water and dilute to 100.0 mL with the same solvent.
Magnesium Standard Solution (1000 ppm Mg):
Dissolve 5.275 g of magnesium nitrate in 16 mL of dilute nitric acid and dilute to 500.0 mL with water.
Magnesium Standard Solution (100 ppm Mg):
Immediately before use, dilute with water to 10 times its volume a solution containing magnesium sulfate equivalent to 1.010 g of MgSO4,7H2O in 100.0 mL.
Magnesium Standard Solution (10 ppm Mg):
Immediately before use, dilute magnesium standard solution (100 ppm Mg) to 10 times its volume with water.
Magnesium Standard Solution (10 ppm Mg) R1:
Immediately before use, dilute with water to 100 times its volume a solution containing 8.365 g of magnesium chloride in 1000.0 mL of dilute hydrochloric acid.
Emoticon Emoticon