FeCl 3 (0.96 g/l stock solution) 100.00 ml H 3 BO 3 (22.4 g/l stock solution) 100.00 ml NaNO 3 (84.0 g/l stock solution) 100.00 ml Na 2 -EDTA x 2 H 2 O (25.3 g/l stock solution) 100.00 ml Sodium beta-glycerophosphate (8.0 g/l stock solution) 100.00 ml