Optimization of Microwave-Assisted Extraction Procedure for Zinc and Iron Determination in Celery by Box–Behnken Design

Abstract

This article describes the development by response surface methodology (RSM) of a procedure for zinc and iron determination by flame atomic absorption spectrometry (FAAS) in food samples after extraction by microwave system. A Box-Behnken matrix was used to find optimal conditions for the procedure through response surface study. Three variables "irradiation power and time and temperature" were regarded as factors in the optimization study. The working conditions were established as a compromise between optimum values found for each analyte. These values were 80°C, 105 W, and 9.0 min, for temperature, irradiation power and time, respectively. The method was applied to the determination of iron and zinc in two celery samples.

Evaluation of trace element contents of some herbal plants and spices retailed in Kayseri, Turkey

“…Since food is one of the main sources of heavy metal ions for humans, the analysis of food samples for trace heavy metal contents has been continuously performed (Bhat et al 2010;Beyhan et al 2010;Turhan et al 2010;Mahesar et al 2010;Chan et al 2010;Moreno-Rojas et al 2010). Plants, especially herbal plants and spice samples, contain both essential and toxic metals in a wide range of concentrations (Dzung et al 2010;Erkan et al 2010;Soylak 2004;McKenzie et al 2010;Kalac 2010;Khajeh and Sanchooli 2010;Pakade et al 2011).…”

Multiple responses optimization of ultrasonic-assisted extraction by response surface methodology (RSM) for rapid analysis of bioactive compounds in the flower head of Chrysanthemum morifolium Ramat.

“…On the basis of the single factor test results, the ranges of independent variables, including methanol concentration, extraction time, and the liquid/solid ratio were confirmed. The range and central point values of three independent variables used in these studies are summarized in Table 2. A Box-Behnken design (BBD) is one method of RSM used to examine the relationship between one or more response variables and a set of quantitative experimental parameters (Khajeh and Sanchooli, 2010). The BBD method was selected in this study to optimize the extraction conditions (three factors and three levels with 17-runs) and to evaluate main effects, interaction effects and quadratic effects of the extraction conditions.…”

Old and New Flavors of Flame (Furnace) Atomic Absorption Spectrometry

“…The best work conditions were observed with 110 • C, 176 W, and 16 min. In another study Khajeh and Sanchooli [107] used a Box-Behnken design to optimize microwave-assisted extraction for Fe and Zn determination in celery. The best conditions achieved were 80 • C, 105 W, and 9 min.…”