. 2020 Jun 4;5(23):13566–13577. doi: 10.1021/acsomega.0c00030

Table 4. Analysis of Zn and Cu in Soil before (after Addition of NPs) and after the Experiments^a.

NPs	conc. (mg/kg)	before	after
Zinc Analysis
ZnO	control	219.6 ± 9.8^d	153.5 ± 8.3^d
	Z200	364.1 ± 10.9^c	208.9 ± 11.5^c
	Z400	438.3 ± 14.4^b	261.0 ± 10.8^b
	Z600	972.8 ± 15.0^a	495.3 ± 13.2^a
Copper Analysis
CuO	control	21.5 ± 3.7^d	14.8 ± 2.9^d
	C12.5	89.2 ± 6.1^c	42.5 ± 7.2^c
	C25	108.4 ± 7.5^b	74.2 ± 7.9^b
	C50	176.2 ± 7.1^a	91.3 ± 4.6^a

The results are presented as mean (n = 3). The similar letters within the column mean no statistical difference between treatments in Turkey’s test (p ≤ 0.05).

Table 4. Analysis of Zn and Cu in Soil before (after Addition of NPs) and after the Experimentsa.

Table 4. Analysis of Zn and Cu in Soil before (after Addition of NPs) and after the Experiments^a.