Experimental design in chemometrics

Deming, Stanley N.; Palasota, John A.; Palasota, Josephine M.

doi:10.1002/cem.1180050306

Cited by 23 publications

(13 citation statements)

References 50 publications

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“…Planejamentos experimentais devem ser utilizados para garantir que os vetores das concentrações sejam independentes uns dos outros 6 . Nos casos em que a preparação de amostras de composição definida não é possível, devem ser selecionadas, na medida do possível, as amostras que sejam as mais representativas e não-correlacionadas (planejamentos naturais 3 ).…”

Section: Figura 3 Métodos De Calibração Multivariadaunclassified

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Recomendações para calibração em Química Analítica parte 2: calibração multianalito

Pimentel¹,

Galvão²,

Araújo³

2008

Quím. Nova

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This paper is a translation of an IUPAC document by K. Danzer, M. Otto and L. A. Currie (Pure Appl. Chem., 2004, 76(6), 1215-1225). Its goal is to establish a uniform and meaningful standard for terminology (in Portuguese), notation, and formulation concerning multispecies calibration in analytical chemistry. Calibration in analytical chemistry refers to the relation between sample domain and measurement domain (signal domain) expressed by an analytical function x = f s (Q) representing a pattern of chemical species Q and their amounts or concentrations x in a given test sample and a measured function y = f (z) that may be a spectrum, chromatogram, etc. Simultaneous multispecies analyses are carried out mainly by spectroscopic and chromatographic methods in a more or less selective way. For the determination of n species Qi (i=1,2, ..., n), at least n signals must be measured which should be well separated in the ideal case. In analytical practice, the situation can be different

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Section: Figura 3 Métodos De Calibração Multivariadaunclassified

“…Em calibração multivariada, colinearidades entre as variáveis causadas por correlações entre as concentrações das amostras de calibração devem ser evitadas. Portanto, a composição das misturas de calibração não deve ser escolhida aleatoriamente, mas seguindo um planejamento experimental 6 .…”

Section: Diagnóstico De Erros E Validaçãounclassified

Recomendações para calibração em Química Analítica parte 2: calibração multianalito

Pimentel¹,

Galvão²,

Araújo³

2008

Quím. Nova

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“…The optimization was obtained by using a Response Surface Methodology (RSM), rotatable uniform and central composite design [29]. The Statistical calculations were done by using JMP software [30].…”

Section: Introductionmentioning

confidence: 99%

Electrocoagulation treatment of the food dye waste industry: Theoretical and experimental study

Byoud¹,

Wakrim²,

Benhsinat³

et al. 2017

JMES

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The performance of the electrocoagulation treatment of synthetic food dye waste industry was studied using iron anode. The influence of several parameters as electrolysis current, chloride concentration, electrolysis time and pH was investigated. In order to verify these factors and their impact on the discoloration efficiency, an experimental design model was established. The mathematical model was created using a rotatable, uniform and central composite design. This model described the color removal efficiency and the energy consumption according to the studied parameters. The graphical representation of the model according to the parameters allowed us to define optimal treatment conditions. The optimal values of electrolysis current, chloride concentration, electrolysis time and pH were respectively 14.4 mA/cm 2 , 5.76 g/L, 39 mn and 7. 94.52% of color removal efficiency is achieved with an energy consumption of 3.90 KWh/m 3 .

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“…Experimental design procedures are very useful in pharmaceutical development including formulation development, analytical method optimization and validation. They are more efficient than the traditional one-variable-at-a-time approach [7,8].…”

Section: Introductionmentioning

confidence: 99%

Design of Experiments Based Validated HPTLC Method for Quantification of Oxybenzone and Avobenzone in Personal Care Products

Kavitha¹,

Lakshmi²

2017

Eurasian J Anal Chem

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A rapid, simple and economic High Performance Thin Layer Chromatography (HPTLC) method for the simultaneous quantification of Oxybenzone and Avobenzone in various personal care products available in local markets in and around Chennai is developed and validated. Central Composite design (CCD) with three factors and one response was employed to study the robustness of the developed method. The best chromatographic separation was achieved employing Toluene: Acetonitrile: Ethyl acetate (4: 5: 1 v/v/v) as solvent system. Densitometric analysis was carried out at 332 nm. The developed method is examined for validation parameters like linearity, specificity, precision, accuracy and robustness. The method was found linear over a wide range of 2.5 -200 ng/band with a regression coefficient of 0.9998 and 0.9991 for Oxybenzone and Avobenzone respectively. All the validation parameters were found to be within the acceptance limit. The proposed and developed HPTLC method can be applied for routine analysis of Oxybenzone and Avobenzone, in the presence of other excipients in cosmetic products and can also be extended to analysis in pharmaceuticals and food products.

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Experimental design in chemometrics

Cited by 23 publications

References 50 publications

Recomendações para calibração em Química Analítica parte 2: calibração multianalito

Recomendações para calibração em Química Analítica parte 2: calibração multianalito

Electrocoagulation treatment of the food dye waste industry: Theoretical and experimental study

Design of Experiments Based Validated HPTLC Method for Quantification of Oxybenzone and Avobenzone in Personal Care Products

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