Table 3.
Evaluation of the ICP-OES methods

Element	Weight (g/50 mL)	RSD (%)		Recovery (%)
		Intra-day	Inter-day
		(n=3)	(n=12)
		Phosphorus	0.08		1.77	3.00	95.75±2.22
0.25	0.40		1.43	100.71±0.96
1.0	0.77		3.23	110.63±3.39