This work used a central composite design to optimise a reverse phase high performance
liquid chromatographic method for the simultaneous separation of gallic, syringic, 5 …

Volatile organic compounds (VOCs) were isolated from acerola fruits (Malpighia emarginata
DC), by means of different solid phase microextraction (SPME) fibers. For the extraction, the …

A 23 factorial design and a CCD (Central Composite Design) were employed to optimize the
operational conditions for determining Al, Ba, Ca, Cd, Cr, Cu, K, Mg, Na, Ni, Pb, Sn and Zn in …

A method for the direct determination (without sample pre-digestion) of microelements in fruit
juice by inductively coupled plasma optical emission spectrometry has been developed. The …

In this paper, the effects of acrylamide (AAm), methylcellulose (MC) contents, pH and ionic
strength on kinetic, network and hydrophilic properties of polyacrylamide and …

The mixture design of cement-based materials can be complex due to the increasing
number of constituent raw materials and multiple requirements in terms of engineering …

Caffeine (CAF), present in various pharmaceutical formulations and food supplements, is
one of the most consumed substances worldwide. Therefore, it is necessary to develop ways …

This work evaluated the efficiency and systemic application of heterogeneous photocatalytic
degradation for dairy wastewater under advanced oxidation process (AOP) utilizing solar …

The aim of this study was to verify the influence of phosphorus and nitrogen nutrients in the
culture and production of biosurfactants by Spirulina platensis LEB 52, Spirulina …

The optimization of the anaerobic degradation of the azo dye Remazol golden yellow RNL
was performed according to multivariate experimental designs: a 2² full-factorial design and …