Multivariate optimization of ultrasound-assisted extraction using Doehlert matrix for simultaneous determination of Fe and Ni in vegetable oils by high-resolution continuum source graphite furnace atomic absorption spectrometry

Almeida, Jorge S.; Santos, Gabriel Luiz dos; Brandão, Geovani Cardoso; Korn, Maria Graças A.; Teixeira, Leonardo Sena Gomes

doi:10.1016/j.foodchem.2018.01.112

Cited by 33 publications

(9 citation statements)

References 23 publications

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“…16 A very important feature of this instrument is that it can perform simultaneous or sequential multi-element analysis (Tables 2 and 3). The HR-CS-GFAAS technique was mainly applied for the simultaneous or sequential multi-element analysis of foodstuffs, 82,87,109,123,125,92,93,99,[102][103][104]106,108 environmental media, 79,82,111,112,117,122,85,86,90,94,96,100,108,110 crude oil [75][76][77] and biological specimens. 80,107 Twenty-eight elements were determined by this technique and Fe, Ni, Cd and Co were the most frequently examined.…”

Section: Simultaneous or Sequential Multi-element Analysis By Hr-cs-gfaasmentioning

confidence: 99%

Simultaneous Or Sequential Multi-Element Graphite Furnace Atomic Absorption Spectrometry Techniques: Advances Within The Last 20 Years

Thomaidis¹

2021

At.Spectrosc.

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Electrothermal or graphite furnace atomic absorption spectrometry (ETAAS or GFAAS) is one of the most widely used techniques for determining elements in different matrices (e.g., foodstuffs, pharmaceuticals, biological specimens, nanomaterials, polymers, fuels and environmental media). Numerous elements can be simply and quickly determined with high precision and accuracy, low detection limits, and at moderate cost. The technique is also suitable for direct solid and slurry sample analysis. A crucial feature of this technique is that it can perform simultaneous or sequential multi-element analysis. Over the years, many instruments have come on the market for multi-elemental analysis using mostly line source (LS) GFAAS and high-resolution continuum source (HR-CS) GFAAS. This review covers publications from 2000 to 2020related to the simultaneous or sequential multi-elemental analysis by LS-GFAAS and HR-CS-GFAAS. Mainly the applications, the limits of detection, the use of internal standardization and other aspects regarding the matrix, pyrolysis and atomization temperatures and modifiers are discussed. Finally, a critical comparison is made between the LS-GFAAS and HR-CS-GFAAS techniques.

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Section: Simultaneous or Sequential Multi-element Analysis By Hr-cs-gfaasmentioning

confidence: 99%

Simultaneous Or Sequential Multi-Element Graphite Furnace Atomic Absorption Spectrometry Techniques: Advances Within The Last 20 Years

Thomaidis¹

2021

At.Spectrosc.

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“…This analytical technique is suitable only for graphite furnace AAS [ 38 , 69 ]. There was new application in analysing food samples using AAS such as determination of meat and baby food samples [ 37 ], infant formula [ 40 ], vegetables [ 39 ], fruit juices [ 35 ], fish fillet [ 41 ] and vegetable oils [ 42 ]. The development and progress of several AAS technique and application in various food matrices is summarized in Table 2 .…”

Section: Mineralsmentioning

confidence: 99%

Recent Techniques in Nutrient Analysis for Food Composition Database

et al. 2020

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Food composition database (FCD) provides the nutritional composition of foods. Reliable and up-to date FCD is important in many aspects of nutrition, dietetics, health, food science, biodiversity, plant breeding, food industry, trade and food regulation. FCD has been used extensively in nutrition labelling, nutritional analysis, research, regulation, national food and nutrition policy. The choice of method for the analysis of samples for FCD often depends on detection capability, along with ease of use, speed of analysis and low cost. Sample preparation is the most critical stage in analytical method development. Samples can be prepared using numerous techniques; however it should be applicable for a wide range of analytes and sample matrices. There are quite a number of significant improvements on sample preparation techniques in various food matrices for specific analytes highlighted in the literatures. Improvements on the technology used for the analysis of samples by specific instrumentation could provide an alternative to the analyst to choose for their laboratory requirement. This review provides the reader with an overview of recent techniques that can be used for sample preparation and instrumentation for food analysis which can provide wide options to the analysts in providing data to their FCD.

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“…Several instrumental techniques are available for the detection of total iron, such as atomic absorption spectroscopy, 9 , 10 inductively coupled plasma mass spectrometry, 11 colorimetry, 12 and cyclic voltammetry. 13 However, some of these techniques have several drawbacks such as the inability to determine the redox states of iron, requirement of complicated pretreatment procedures and sophisticated instrumentation, 14 lack of selectivity, destruction of the sample, and inability to apply in the field.…”

Section: Introductionmentioning

confidence: 99%

Dipicolylamine-Based Fluorescent Probes and Their Potential for the Quantification of Fe³⁺ in Aqueous Solutions

et al. 2022

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We have synthesized two ligand systems, N(SO 2 )(R 1 )dpa (L1) and N(SO 2 )(R 2 )dpa (L2), where R 1 = biphenyl and R 2 = azobenzene, which are sulfonamide derivatives of the NNN-donor chelating dipicolylamine. Both L1 and L2 can be used as sensors for detecting Fe 3+ and are highly sensitive and selective over a wide range of common cations. Time-dependent density functional theory (TDDFT) calculations confirmed that the key excitations of L2 and the [Fe(L2)(H 2 O) 3 ] 3+ model complex involve −R 2 -unit-based π and π* charge transfer. L2 demonstrates a relatively high photostability, a fluorescence turn-on mechanism, and a detection limit of 0.018 μM with 1.00 μM L2 concentration, whereas L1 has a detection limit of 0.67 μM. Thus, both ligands have the potential to be used as fluorosensors for the detection of Fe 3+ in aqueous solutions.

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Multivariate optimization of ultrasound-assisted extraction using Doehlert matrix for simultaneous determination of Fe and Ni in vegetable oils by high-resolution continuum source graphite furnace atomic absorption spectrometry

Cited by 33 publications

References 23 publications

Simultaneous Or Sequential Multi-Element Graphite Furnace Atomic Absorption Spectrometry Techniques: Advances Within The Last 20 Years

Simultaneous Or Sequential Multi-Element Graphite Furnace Atomic Absorption Spectrometry Techniques: Advances Within The Last 20 Years

Recent Techniques in Nutrient Analysis for Food Composition Database

Dipicolylamine-Based Fluorescent Probes and Their Potential for the Quantification of Fe³⁺ in Aqueous Solutions

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Multivariate optimization of ultrasound-assisted extraction using Doehlert matrix for simultaneous determination of Fe and Ni in vegetable oils by high-resolution continuum source graphite furnace atomic absorption spectrometry

Cited by 33 publications

References 23 publications

Simultaneous Or Sequential Multi-Element Graphite Furnace Atomic Absorption Spectrometry Techniques: Advances Within The Last 20 Years

Simultaneous Or Sequential Multi-Element Graphite Furnace Atomic Absorption Spectrometry Techniques: Advances Within The Last 20 Years

Recent Techniques in Nutrient Analysis for Food Composition Database

Dipicolylamine-Based Fluorescent Probes and Their Potential for the Quantification of Fe3+ in Aqueous Solutions

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Dipicolylamine-Based Fluorescent Probes and Their Potential for the Quantification of Fe³⁺ in Aqueous Solutions