Serial number	(CH₃COO)₂Ca (mol/L)	NH₄H₂PO₄ (mol/L)	NaH₂PO₄ (mol/L)	EDTA-2Na (mol/L)	Mole ratio of Ca and P
1	0.024	0.012	0.008	0.005	1.2
2	0.024	0.009	0.006	0.006	1.6
3	0.024	0.007	0.005	0.007	2.0
4	0.048	0.024	0.016	0.01	1.2
5	0.048	0.018	0.012	0.012	1.6
6	0.048	0.014	0.01	0.014	2.0
7	0.072	0.036	0.024	0.015	1.2
8	0.072	0.027	0.018	0.018	1.6
9	0.072	0.021	0.015	0.021	2.0
10	0.096	0.048	0.032	0.02	1.2
11	0.096	0.036	0.024	0.024	1.6
12	0.096	0.028	0.02	0.028	2.0