Antimony speciation analysis by hydride trapping on hybrid nanoparticles packed in a needle trap device with electro-thermal atomic absorption spectrometry determination

Maratta, Ariel; Carrizo, Brian; Bazán, Vanesa; Villafañe, Gastón; Martínez, Luis D.; Pacheco, Pablo H.

doi:10.1039/c8ja00311d

Cited by 9 publications

(3 citation statements)

References 45 publications

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“…Different strategies for Sb speciation analysis have been reported in recent years, as can be seen in the summary presented in Table 1. One of them involved the use of hybrid nanoparticles (NPs) composed of oxidized multi-walled carbon nanotubes (MWCNTs) and nano-TiO 2 as solid sorbent for the flow injection analysis of river water, coupled to electrothermal atomic absorption spectrometry (ETAAS) detection [33]. This method required low sample and reagent volumes compared to other SPE-based approaches, although several concentrated strong acids were used for the synthesis of the sorbent, producing a considerable amount of acidic waste.…”

Section: Antimonymentioning

confidence: 99%

Elemental Speciation Analysis in Environmental Studies: Latest Trends and Ecological Impact

Llaver

Fiorentini

Oviedo

et al. 2021

IJERPH

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Speciation analysis is a key aspect of modern analytical chemistry, as the toxicity, environmental mobility, and bioavailability of elemental analytes are known to depend strongly on an element’s chemical species. Henceforth, great efforts have been made in recent years to develop methods that allow not only the determination of elements as a whole, but also each of its separate species. Environmental analytical chemistry has not ignored this trend, and this review aims to summarize the latest methods and techniques developed with this purpose. From the perspective of each relevant element and highlighting the importance of their speciation analysis, different sample treatment methods are introduced and described, with the spotlight on the use of modern nanomaterials and novel solvents in solid phase and liquid-liquid microextractions. In addition, an in-depth discussion of instrumental techniques aimed both at the separation and quantification of metal and metalloid species is presented, ranging from chromatographic separations to electro-chemical speciation analysis. Special emphasis is made throughout this work on the greenness of these developments, considering their alignment with the precepts of the Green Chemistry concept and critically reviewing their environmental impact.

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Section: Antimonymentioning

confidence: 99%

Elemental Speciation Analysis in Environmental Studies: Latest Trends and Ecological Impact

Llaver

Fiorentini

Oviedo

et al. 2021

IJERPH

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“…The final optimization of the proposed methodology and the expected response according to the selected factors was carried out using the response surface method (RSM). The RSM has been seen in other reports where multivariate optimization strategies are applied (Maratta, Carrizo, Bazán, Villafañe, Martínez, & Pacheco, 2018). A Box-Behnken design was exploited.…”

Section: Study Of the Factors Influencing The Selenium Extraction Processmentioning

confidence: 99%

Green and simple extraction of free seleno-amino acids from powdered and lyophilized milk samples with natural deep eutectic solvents

et al. 2020

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Natural deep eutectic solvents (NADES) were introduced for the extraction of free selenoamino acids from lyophilized and powdered milk samples. Different NADES were evaluated, and lactic acid:glucose (LGH) showed the highest selenium recoveries. Selenium analysis was performed by inductively coupled plasma mass spectrometry (ICP MS). Se-NADES analysis in ICP MS was optimized according to the radio frequency power and nebulization gas flow rate. Se-NADES extraction was optimized by an experimental design. LGH dilution, LGH volume, sample quantity, and ultrasound time were factors influencing the extraction. Seleno-amino acids were determined by liquid chromatography-ICP MS. After optimization, the limits of detection obtained were 7.37, 8.63, and 9.64 µg kg -1 for selenocysteine, selenomethionine, and seleno-methylselenocysteine, respectively. The NADES-extraction is a green procedure with 2 penalty points in the EcoScale. The method was applied to the analysis of powdered milk, lyophilized Se-fortified sheep milk, and ERM-BD151 skimmed milk powder.

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“…Although there are some reports on the analysis of As, Hg, Se and Sb species by AAS [ 164 , 165 , 166 , 167 ] or AES [ 168 , 169 , 170 ] in recent years, AFS is described to be superior to AAS and similar to ICP-MS regarding sensitivity and linear calibration range for As and Se species in routine analysis. Analytical features such as low detection limits and wide linear calibration ranges, simplicity, lower acquisition and running costs make AFS a suitable atomic detector in speciation studies.…”

Section: Detection Techniques For Speciation Analysismentioning

confidence: 99%

Speciation Analysis of Trace Arsenic, Mercury, Selenium and Antimony in Environmental and Biological Samples Based on Hyphenated Techniques

Liu

Guo

et al. 2019

Molecules

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In order to obtain a well understanding of the toxicity and ecological effects of trace elements in the environment, it is necessary to determine not only the total amount, but also their existing species. Speciation analysis has become increasingly important in making risk assessments of toxic elements since the toxicity and bioavailability strongly depend on their chemical forms. Effective separation of different species in combination with highly sensitive detectors to quantify these particular species is indispensable to meet this requirement. In this paper, we present the recent progresses on the speciation analysis of trace arsenic, mercury, selenium and antimony in environmental and biological samples with an emphasis on the separation and detection techniques, especially the recent applications of high performance liquid chromatography (HPLC) hyphenated to atomic spectrometry or mass spectrometry.

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Antimony speciation analysis by hydride trapping on hybrid nanoparticles packed in a needle trap device with electro-thermal atomic absorption spectrometry determination

Abstract: Novel hybrid nanoparticles show faster antimony adsorption kinetics compared to single nanoparticles, becoming superior sorbents for analytical applications.

Cited by 9 publications

References 45 publications

Elemental Speciation Analysis in Environmental Studies: Latest Trends and Ecological Impact

Elemental Speciation Analysis in Environmental Studies: Latest Trends and Ecological Impact

Green and simple extraction of free seleno-amino acids from powdered and lyophilized milk samples with natural deep eutectic solvents

Speciation Analysis of Trace Arsenic, Mercury, Selenium and Antimony in Environmental and Biological Samples Based on Hyphenated Techniques

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