In the present paper is presented a review on the application of Doehlert design in the optimization of some of the steps of analytical procedures aimed the analysis of food samples. The theoretical principles and the main characteristics of this type of design are described. In addition, the main advantages and limitations of Doehlert design over other designs (Central Composite Design and Box-Behnken) and its application in the area of food analysis are discussed. Finally, to illustrate its potential, some examples of Doehlert design application in other areas of food chemistry without the purpose of analytical determination will be briefly presented.
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http://dx.doi.org/10.1016/j.foodchem.2021.130429 | DOI Listing |
Polim Med
December 2024
Chair and Department of Physical Pharmacy and Pharmacokinetics, Poznań University of Medical Sciences, Poland.
Developing the analytical procedure requires estimating what independent variables will be tested and at what levels. There are statistical models that enable the optimization of the process. They involve statistical analysis, which indicates the crucial factors for the process and the potential interactions between the analyzed variables.
View Article and Find Full Text PDFElectrophoresis
November 2024
Laboratory of Microfluidics and Separations (LaMS), Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
Attesting optimal drug concentrations in biological fluids is crucial to ensure precise dosage adjustment, to guarantee therapy adherence, and to manage side effects in chemotherapy. Accurate drug determination relies on liquid chromatography and advanced detectors, with sample preparation playing a pivotal role, especially in complex matrices such as biological fluids. This study introduces a multiphase electroextraction (MPEE) of doxorubicin (DOX) in saliva by utilizing a paper point, followed by ultra-high-performance liquid chromatography coupled to diode array detection.
View Article and Find Full Text PDFJ Environ Health Sci Eng
June 2024
Department of Basic Sciences, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.
Today, the excessive and increasing use of phenoxy family herbicides such as 2-methyl-4-chlorophenoxyacetic acid (MCPA) and (2,4- dichlorophenoxy) acetic acid (2,4-DCPA) for reasons such as indestructibility and pollution of groundwater resources is one of the most important environmental problems. Pesticide adsorbents like layered double hydroxides (LDHs) are commonly utilized due to their straightforward synthesis, substantial specific surface area resulting from their layered structure, and the potential for surface modification. These natural minerals serve as effective options for adsorption.
View Article and Find Full Text PDFMaterials (Basel)
October 2024
Laboratoire de Chimie Agro-industrielle, INRAE, INPT, Université de Toulouse, 4 Allé Emile Monso, CS 44362, 31030 Toulouse, France.
The hot pressing process for 100% coriander-based fiberboards was optimized using an induction RocTool system, which offers rapid mold heating and cooling. The fiberboards were made using deoiled press cake as a protein binder and extrusion-refined straw as reinforcement. Doehlert's experimental design was used to evaluate the influence of pressure (10-50 MPa), molding time (60-300 s), and mold temperature (155-205 °C) on fiberboard properties, energy consumption, cost, and environmental impact.
View Article and Find Full Text PDFJ AOAC Int
October 2024
Post-graduation Program in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, RS, 90610-000 Brazil.
Background: Hemodialysis solutions are liquid concentrates used during hemodialysis sessions. They are commonly used as a renal replacement therapy.
Objective: This study aimed to develop a method to determine Na, K, Ca and Mg in hemodialysis solutions by high-resolution continuum source flame atomic absorption spectrometry (HR-CS F AAS) using Design of Experiments (DOE).
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