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Table 1 List of independent variables and levels

From: Parametric modelling and analysis to optimize adsorption of Atrazine by MgO/Fe3O4-synthesized porous carbons in water environment

Factor

Unit

Code

Levels

− 1

1

Concentration

mg L−1

X1

5

30

pH

 

X2

2

12

Adsorbent dosage

g

X3

0.5

3

Reaction temperature

°C

X4

30

55