Robustness evaluation in analytical methods optimized using experimental designs

Ferreira, Sérgio L.C.; Caires, Adriana O.; Borges, Thaise da S.; Lima, Ariana M.D.S.; Silva, Laiana O.B.; Santos, Walter Nei Lopes dos

doi:10.1016/j.microc.2016.12.004

Cited by 101 publications

(43 citation statements)

References 65 publications

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“…For evaluation of the extraction procedure, a feed sample labeled as chicken 1 was used due to its high total As concentration. Full factorial design with three levels is one of the most frequently applied chemometric tools in multivariate optimization for screening in order to evaluate the effect of the main factors and their interactions (Ferreira et al, 2017;Soylak, Narin, Bezerra M de, & Ferreira, 2005). The experiments were designed and analyzed using the software Statistica Ò version 10.0 (StatSoft, Oklahoma, USA).…”

Section: Extraction Methods Developmentmentioning

confidence: 99%

Speciation analysis of organoarsenic compounds in livestock feed by microwave-assisted extraction and high performance liquid chromatography coupled to atomic fluorescence spectrometry

et al. 2017

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Section: Extraction Methods Developmentmentioning

confidence: 99%

Speciation analysis of organoarsenic compounds in livestock feed by microwave-assisted extraction and high performance liquid chromatography coupled to atomic fluorescence spectrometry

et al. 2017

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“…Modelling of a green adsorbent from PP using a facile, cost-effective, and efficient procedure, optimization of the adsorption process, and maximizing the removal efficiency of PP were the tasks undertaken in the current approach. A multivariate platform exploiting Plackett-Burman design (PBD) was the maneuver of choice [28,29]. A comparison between the RPP and BPP was carried out.…”

Section: Introductionmentioning

confidence: 99%

Potato Peels as an Adsorbent for Heavy Metals from Aqueous Solutions: Eco-Structuring of aGreenAdsorbent Operating Plackett–Burman Design

El-Azazy

El-Shafie

Issa

et al. 2019

Journal of Chemistry

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Treatment of wastewater is becoming a concern of an increasing prominence. Trace amounts of toxic metalloids and heavy metals (HMs) would contaminate large volumes of water. Being present as traces, removal of these ultratrace contaminants from wastewater is challenging. Adsorption of HMs onto raw (RPP) and burnt (BPP) potato peels (PP) is presented in the current treatise. Both adsorbents (RPP and BPP) proved to be efficient in removing Cd(II), Co(II), Cu(II), Fe(II), La(III), Ni(II), and Pb(II) from aqueous solutions. BPP was a more efficient adsorbent compared to RPP. Ecodesign of a model, green adsorbent was structured executing a multivariate approach, design of experiments (DoE). The purpose of using DoE is to maximize the efficiency of BPP (carbonaceous biomass) as a versatile adsorbent. Plackett–Burman design (PBD) was used as a screening phase. Four factors were considered: pH, contact time (CT), heavy metal concentration (HMC), and the adsorbent dose (AD). The Pareto chart of standardized effects shows that the most influential factor is the HMC. These data were confirmed by analysis of variance (ANOVA). Derringer’s function was operated to find the best factorial blend that maximizes the adsorption process. The percentage (%) removal of Cd(II), for example, was maximized hitting 100%. Adsorbent surface characterization was performed using FTIR, BET, SEM, TGA/dTG, and EDX analyses. Adsorption was found to be physisorption that follows Temkin isotherm with sorption energy 66 kJ/mole. Adsorption kinetics was found to be pseudo-first-order. Adsorption capacity (qm) for BPP was 239.64 mg/g. The diffusion inside the particles was very limited, while the initial rate of the adsorption was extremely high as shown by the Elovich plot.

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“…In the case of phosphorus, our LOD is better than the general one of a factor close to 6. In addition, the 11 measurements of closeness of agreement were taken during different sessions in different days using newly prepared reference solutions, still giving satisfactory results on average and proving that it is rugged (namely, it shows low within-laboratory variation) [56,57]. It is acknowledged that neither the standard nor the reference materials were matrix-matched.…”

Section: Analytical Figures Of Merit Of the Icp-oes Methodsmentioning

confidence: 98%

Unveiling Harriet Backer: ICP–OES study for the characterisation of the colour tubes from her original paint box

et al. 2019

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Micro-samples from 57 original paint tubes used between 1904 and 1909 by the Norwegian painter, Harriet Backer were studied with inductively coupled plasma-optical emission spectroscopy (ICP-OES). This accurate elemental characterisation of Backer's original materials aims to fill several gaps in conservation science, painting conservation, and art technology. Firstly, it provides a novel and validated analytical method that can be applied to other painting materials. Secondly, ICP-OES offers scientific information about different oil colours from the late 19th to the early 20th century by Dr. Schoenfeld & Co., Düsseldorf, currently known as Lukas-Nerchau, whose archives were depleted during the Second World War. This work also lends new insights into the paintings of a renowned female Norwegian artist, whose painting materials have been little studied to date. ICP-OES results, coupled with a comprehensive, illustrated catalogue of paint tubes, will be instrumental for ongoing scientific investigations of this painter's body of work.

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Robustness evaluation in analytical methods optimized using experimental designs

Cited by 101 publications

References 65 publications

Speciation analysis of organoarsenic compounds in livestock feed by microwave-assisted extraction and high performance liquid chromatography coupled to atomic fluorescence spectrometry

Speciation analysis of organoarsenic compounds in livestock feed by microwave-assisted extraction and high performance liquid chromatography coupled to atomic fluorescence spectrometry

Potato Peels as an Adsorbent for Heavy Metals from Aqueous Solutions: Eco-Structuring of aGreenAdsorbent Operating Plackett–Burman Design

Unveiling Harriet Backer: ICP–OES study for the characterisation of the colour tubes from her original paint box

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