نتایج جستجو برای: box behnken method
تعداد نتایج: 1703160 فیلتر نتایج به سال:
A fucoidan discovered in the plant Fucus vesiculosus, which lowered molecular weight of fucoidan, was ideal for its application pharmaceutical and food sectors. The aim to study impact ultrasound process parameters on weight, structure, antioxidant activity fucoidan. For optimization sonochemical such as temperature, sonication time, power (intensity), Box–Behnken design (BBD) through response ...
This investigation attempted to study electrochemical oxidation of formaldehyde at lower concentrations. Experiments were carried out in a batch electrochemical reactor using commercially available RuO2 coated titanium and SS as anode and cathode respectively and covering a wide range in operating conditions. Further, the statistical tool Response surface methodology by Box-Behnken design was u...
Isoliquiritigenin (ILG) of licorice is a potential cancer chemopreventive agent. In this paper, response surface methodology (RSM) integrating with Box-Behnken design (BBD) was firstly employed to optimize the ILG extraction, which based on the single-factor experiments. According to analysis, the effect of extraction time and ethanol concentration on yields was significantly. The optimum value...
The response surface methodology using the Box-Behnken design was established to describe supercritical carbon dioxide assisted extraction of phyllanthin from Phyllanthus amarus Schum and Thonn leaves prior to HPLC analysis. The effects of extraction pressure, temperature, modifier concentration and extraction time on the yield of phyllanthin were investigated. By solving the regression equatio...
Statistical designs and response surface techniques for the optimization of chromatographic systems.
This paper describes fundamentals and applications of multivariate statistical techniques for the optimization of chromatographic systems. The surface response methodologies: central composite design, Doehlert matrix and Box-Behnken design are discussed and applications of these techniques for optimization of sample preparation steps (extractions) and determination of experimental conditions fo...
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