A chemometric approach based on response surface methodology for optimization of antibiotic and organic dyes removal from water samples

Table 1 The design matrix

Variables	Symbol	Unit	Range and levels
Variables	Symbol	Unit	− 1	0	+ 1
pH of the solution	A	–	4	7	10
Analyte concentration	B	mg L⁻¹	10	20	30
Nanocomposite amount	C	g	0.005	0.010	0.015
Ultrasound time	D	min	5	10	15

ISSN: 2661-801X