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Box-Behnken design: an alternative for the optimization of analytical methods.
The present paper describes fundamentals, advantages and limitations of the Box-Behnken design (BBD) for the optimization of analytical methods. It establishes also a comparison between this designExpand
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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 compositeExpand
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Doehlert matrix: a chemometric tool for analytical chemistry-review.
A review of the use of the Doehlert matrix as a chemometric tool for the optimization of methods in analytical chemistry and other sciences is presented. The theoretical principles of DoehlertExpand
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Current Status of Direct Solid Sampling for Electrothermal Atomic Absorption Spectrometry—A Critical Review of the Development between 1995 and 2005
Abstract The literature about direct solid sampling (SS) and slurry sampling atomic absorption spectrometry (AAS) over the past decade has been surveyed critically. It became apparent that a veryExpand
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On-line system for preconcentration and determination of metals in vegetables by inductively coupled plasma optical emission spectrometry.
A procedure has been developed for the simultaneous determination of trace amounts of cadmium, copper, chromium, nickel and lead in digested vegetable samples. The method involves solid-phaseExpand
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Automatic on-line pre-concentration system using a knotted reactor for the FAAS determination of lead in drinking water.
An automatic on-line pre-concentration system is proposed for lead determination in drinking water using flame atomic absorption spectrometry (FAAS). Lead(II) ions are retained as theExpand
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Determination of copper in powdered chocolate samples by slurry-sampling flame atomic-absorption spectrometry
Chocolate is a complex sample with a high content of organic compounds and its analysis generally involves digestion procedures that might include the risk of losses and/or contamination. TheExpand
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Uranium determination using atomic spectrometric techniques: an overview.
This review focuses on the determination of uranium using spectroanalytical techniques that are aimed at total determination such as flame atomic absorption spectrometry (FAAS), electrothermal atomicExpand
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Factorial Design and Doehlert Matrix in Optimization of Flow System for Preconcentration of Copper on Polyurethane Foam Loaded with 4‐(2‐Pyridylazo)‐resorcinol
Abstract The present paper describes a flow preconcentration system for copper determination by flame atomic absorption spectrometry (FAAS) based on the sorption of Cu(II) ions onto a mini‐column ofExpand
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A simple, rapid and green ultrasound assisted and ionic liquid dispersive microextraction procedure for the determination of tin in foods employing ETAAS.
This paper proposes a simple, rapid and green ultrasound assisted and ionic liquid dispersive microextraction procedure using pyrocatechol violet (PV) as complexing reagent andExpand
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