To make 1L solution:
- Phosphate buffer solution
8.5g of potassium dihydrogen phosphate (KH2PO4)
33.4g of sodium hydrogen phosphate heptahydate (NA2HPO4.7H20)
1.7g of Ammonium chloride (NH4Cl)
21.75g of Dipotassium hydrogen phosphate (K2HPO4)
*add all up and top up with distilled water till the level
- Magnesium sulphate
22.5g of MgSO4 + distilled water
- Calcium chloride
27.5g of CaCl2 + distilled water
- Ferric chloride
0.25g + distilled water
