REAGENTS
6.1 Deionised (DI) water
6.2 Hydrochloric acid, 4N
Add 250 mL conc. HCl to approximately 500 mL DI water. Shake, allow
to cool and dilute to 1L.
6.3 Nitric Acid
6.3.1 Nitric acid, 6N
Dilute 38 mL conc. HNO3 to 100 mL of DI water.
6.3.2 Nitric Acid, 1N
Add 139.5 mL conc. HNO3 to 1.5 L DI water. Shake, cool and
dilute to 2 L DI water.
6.4 Ammonium monovanadate, 0.25%
Dissolve 0.25 g of ammonium monovanadate in 2 mL conc. HNO3 and
dilute to 100 mL with DI water.