These channels were used as flow path for the sample solution and a thin compartment for the acceptor phase.
Streptomycin against gram-negative bacteria was valid, but the sample solution and standard solution against gram-negative bacteria were invalid.
One of the parts was used as the flow path for the sample solution and the other one as holder for the acceptor phases.
Aqueous solutions of dextran (core solution), sodium alginate (sample solution) and CaCl2 (sheath solution) were extruded simultaneously from the inner, intermediate and outer cylinders, respectively.
The kit consists of a centrifuge tube (reservoir for the sample solution) and a piece of a porous hollow fiber (for sample extraction).
Method has been optimized by changing the pH of analyte solution, solid phase dosage, volume of eluents, flow rate of sample solution and volume of the sample solutions.
Aliquots of 1 mL of the sample solution and 1 mL of DPPH solution were mixed until homogeneity in a cuvette and incubated 20 min in the dark.
From the ratio t/t 0, where t is the efflux time of a sample solution and t 0 is the efflux time of the solvent, the ratio of viscosities of the sample solution and solvent η/η 0, and intrinsic viscosity was obtained.
The variables showing significant effects on the analytical response were the pH value for the sample solution and the volume of the extraction solvent; they were optimized using the central composite face-centered design (CCFD).
Box Behnken design and response surface were employed to assist the optimization of SALLE conditions, including volume of salting-out solvent, the pH of sample solution and salting-out solvent as variable factors.
In this work, dimethyl formamide as a disperser solvent containing dichloromethane, chloroform, and carbon tetrachloride as a ternary extraction solvent mixture is injected into sample solution and a cloudy solution is formed.
