Table 2.

Quantification results of real pig farm wastewater.

Sample	Concentration Detected by ICP (mg/L)	Concentration Detected by Electrochemical (mg/L)	Deviation
1	6.54/7.34	7.32/8.23	11.9%/12.2%
2	4.34/5.68	4.98/6.45	14.7%/13.6%
3	5.53/6.32	4.73/5.54	14.4%/12.3%
4	7.36/9.42	8.20/10.23	11.4%/8.6%