The effective variables such as the amount of adsorbent (mg: NiZnS-AC), the pH and ionic strength of sample solution, the vortex and ultrasonic time (min), the ultrasonic temperature (°C), and desorption volume (mL) are investigated by screening 27 4 experiments of Plackett Burman (PB) design.
The life history response of Cephalodella acidophila to three environmental key factors, pH (2, 3.5, 5.0 and 7.0), temperature (10, 17.5 and 25 °C) and food concentration (10 000, 35 000 and 50 000 algal cells per mL), was investigated in a full factorial design using life-table experiments.
NPs in two concentrations (127, 304.8 μM) and HLM in five concentrations (0, 0.5, 5, 50, and 500 μg ml-1) were investigated; the plasmonic optical adsorption, hydrodynamic diameter, and Z-potential of AuNPs were read at regular intervals.
The effects of contact time (0 to 10 min) were investigated at 20 mL/50 mL sample dosage.
In this study, ultrasonic time (min), ethanol concentration and solvent to solid ratio (mL/g) were investigated and optimized using a Box-Behnken design.
The effects of five significant independent variables such as reaction time, pH, H2O2/Fe2+ molar ratio, current density, volume ratio of H2O2/PSW (ml/l) were investigated on the COD and color removal.
The polymer photovoltaic cells with the structure ITO/PEDOT PSS (180°C for 1 h annealing)/P3HT ICBA (20 mg/ml) (1 1 wt.%)/Al (100 nm) were investigated with the maximum power conversion efficiency of 6.02%.
For both the sorbents, three initial CV concentrations of 10, 15 and 25 mg L−1 and three flow rates of 10, 15 and 20 mL min−1 were investigated at a constant bed depth.
