نتایج جستجو برای: box behnken method
تعداد نتایج: 1703160 فیلتر نتایج به سال:
this study a novel High Performance Liquid Chromatography for the assay of nystatin in oral and vaginal tablets were optimized and validated using Box–Behnken experimental design. The method was performed in the isocratic mode on a RP-18 column (30 °C) using a mobile phase consisting of 0.05 M ammonium acetate buffer/ Methanol mixture (30:70) and a flow-rate of 1.0 ml/min. The method was valida...
Microwave assisted extraction technique was employed to extract pectin from citron peel. Box-Behnken design was applied to investigate the influence of irradiation time, microwave power and pH on the yield and DE of pectin. The finding indicated that the optimal conditions for the maximum yield of pectin (30.71%) were achieved at irradiation time of 3 min, microwave power of 700 W and pH of 1.5...
vanadium phosphorus oxides (vpo) has been applied as a heterogeneous catalyst in gas phase oxidation reactions and its application is very limited in liquid phase. in this study a series of cobalt-doped vanadium phosphorus oxides (vpo-co) catalysts with different loading of co (0.01-1.0 mol ratio of co/v) were prepared. oxidation of benzyl alcohol was studied in the liquid phase over vpo and vp...
Studying gear power loss theoretically and determining the efficiency of a helical drive depend on many geometrical working parameters, such as rotation speed, tooth number, ratio, helix angle, torque, among others. In this paper, Plackett–Burman screening design Box–Behnken response-surface method are used to consider how above parameters influence efficiency, experimental models provided eval...
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