Analytical methodologies for arsenic speciation in macroalgae: A critical review

Reis, Vanessa; Duarte, Armando C.

doi:10.1016/j.trac.2018.02.003

Cited by 42 publications

(21 citation statements)

References 62 publications

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“…are used for different commercial end products, such as fertilizers (Milledge & Harvey, 2016), textiles, paper and drugs (Oyesiku & Egunyomi, 2014), as well as in the production of biogas (Wang et al, 2018). They have also been increasingly used as food for animals and humans, and therefore the high concentrations of contaminants, including heavy metals, may pose potential health risks (Reis & Duarte, 2018). Therefore, it is mandatory to evaluate elemental concentrations to ensure that acceptable levels are maintained in terms of health regulations (e.g., Fourest & Volesky, 1997).…”

Section: Introductionmentioning

confidence: 99%

Element concentrations in pelagicSargassumalong the Mexican Caribbean coast in 2018-2019

Rodríguez-Martínez

Roy

Torrescano-Valle

et al. 2020

PeerJ

114

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The massive influx of pelagic Sargassum spp. (sargasso) into the Mexican Caribbean Sea has caused major deterioration of the coastal environment and has affected the tourism industry as well as livelihoods since 2015. Species of Sargassum have high capacity to absorb metals; thus, leachates of sargasso may contribute to contamination by potentially toxic metals when they drain into the sea and into the groundwater when dumped in inadequate land deposits. Valorization of sargasso would contribute to sustainable management; therefore, knowledge on potentially toxic metal content is necessary to define possible uses of the algae. We present concentrations of 28 elements measured using a non-destructive X-ray fluorescence analyzer (XRF) in 63 samples of sargasso collected between August 2018 and June 2019 from eight localities along ∼370 km long coastline of the Mexican Caribbean Sea. The sargasso tissues contained detectable concentrations of Al, As, Ca, Cl, Cu, Fe, K, Mg, Mn, Mo, P, Pb, Rb, S, Si, Sr, Th, U, V, and Zn. The element concentration in sargasso varied on spatial and temporal scales, which likely depended on the previous trajectory of the pelagic masses, and whether these had (or had not) passed through contaminated areas. Total arsenic concentration varied between 24–172 ppm DW, exceeding the maximum limit for seaweed intended as animal fooder (40 ppm DW) in 86% of the samples. For valorization, we recommend analyses of metal contents as a mandatory practice or avoiding uses for nutritional purposes. The high arsenic content is also of concern for environmental contamination of the sea and aquifer.

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Section: Introductionmentioning

confidence: 99%

Element concentrations in pelagicSargassumalong the Mexican Caribbean coast in 2018-2019

Rodríguez-Martínez

Roy

Torrescano-Valle

et al. 2020

PeerJ

114

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“…The anionic nature of arsenic species is different (at neutral pH, arsenic acid As(V), monomethylarsonic acid (MMA) and dimethylarsonic acid (DMA) are deprotonated, but As(III)) exists) to make anion exchange chromatography suitable for their separation. Anion exchange chromatography has been used to analyze many arsenic compounds, including As(III), As(V), MMA, DMA, arsenobetaine (AsB), arsenocholine (AsC), oxoarsenic sugar (oxoAsS), thiosulfate Arsenic sugar (thioAsS) and benzene arsenic [27,28]. The most commonly used column for arsenic speciation analysis is a strong anion exchange column, such as PRP-X100.…”

Section: Anion Exchange Liquid Chromatographymentioning

confidence: 99%

“…To date, several study on overall arsenic speciation analysis have been done [15,27,28]. Nevertheless, there is still a big knowledge gap in the speciation of arsenic.…”

Section: Introductionmentioning

confidence: 99%

Arsenic Speciation Techniques in Soil Water and Plant: An Overview

Kamal¹,

Miah²

2022

Arsenic Monitoring, Removal and Remediation

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There are more than 100 different arsenic with different characteristics in the soil-water-plant ecosystem. The identification and quantification of individual arsenic species is essential for understanding the distribution, environmental fate and behavior, metabolism and toxicity of arsenic. Due to the hazardous nature of arsenic, people have a high interest in the measurement of arsenic species. The reaction of the formation of arsenic speciation in the soil-water-plant environment is briefly studied. There is little information on methods used to quantify arsenic forms and species in contaminated soil, water and plant. The purpose of this article is to understand the available sample pretreatment, extraction, separation, detection and method validation techniques for arsenic speciation analysis of arsenic species in soil, water and plant. The performances of various sample preparation and extraction processes, as well as effective separation techniques, that contribute greatly to excellent sensitivity and selectivity in arsenic speciation when coupling with suitable detection mode, and method validity are discussed. The outlines of arsenic speciation techniques are discussed in view of the importance to the completeness and accuracy of analytical data in the soil-water-plant samples. To develop cheap, fast, sensitive, and reproducible techniques with low detection limits, still needed to confine research on arsenic speciation present in environmental matrices.

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“…are used for different commercial end products, such as fertilizers (Milledge & Harvey, 2016), textiles, paper and drugs , as well as in the production of biogas (Wang et al, 2018). They have also been increasingly used as food for animals and humans, and therefore the high concentrations of contaminants, including heavy metals, may pose potential health risks (Reis & Duarte, 2018). Therefore, it is mandatory to evaluate elemental concentrations to ensure that acceptable levels are maintained in terms of health regulations (e.g.…”

Section: Manuscript To Be Reviewedmentioning

confidence: 99%

Peer Review #1 of "Element concentrations in pelagic Sargassum along the Mexican Caribbean coast in 2018-2019 (v0.1)"

2020

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Analytical methodologies for arsenic speciation in macroalgae: A critical review

Cited by 42 publications

References 62 publications

Element concentrations in pelagicSargassumalong the Mexican Caribbean coast in 2018-2019

Element concentrations in pelagicSargassumalong the Mexican Caribbean coast in 2018-2019

Arsenic Speciation Techniques in Soil Water and Plant: An Overview

Peer Review #1 of "Element concentrations in pelagic Sargassum along the Mexican Caribbean coast in 2018-2019 (v0.1)"

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