Synchronous Extraction and Quantitative Speciation of Arsenic and Chromium in Sediments by High-Performance Liquid Chromatography – Inductively Coupled Plasma – Mass Spectrometry (HPLC-ICP-MS)

Letsoalo, Mokgehle R.; Mamo, Messai Adenew; Ambushe, Abayneh A.

doi:10.1080/00032719.2020.1830103

Cited by 10 publications

(3 citation statements)

References 32 publications

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“…Polyatomic ion interferences were identified overlapping with MMA, As(V) and Cr(VI). Interference at MMA, As(V) and Cr(VI) peaks affected by Cl − content was corrected daily prior to analysis as recommended by Letsoalo et al [39] and Low et al [40]. The elimination of these interferences was achieved through an inter-elemental procedure using mathematical correction expressions [23].…”

Section: Species Identification and Correction Of Polyatomic Interfer...mentioning

confidence: 99%

Bioaccumulation and Human Health Risk Assessment of Arsenic and Chromium Species in Water–Soil–Vegetables System in Lephalale, Limpopo Province, South Africa

Dintsi,

Letsoalo,

Ambushe

2023

Minerals

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The accumulation of potentially toxic elements (PTEs) in water, soil and vegetables can pose a severe threat to the respective organisms and lead to human health risks upon exposure. Water, soil and vegetable samples were collected from the Mokolo River and its vicinity. Total concentration quantification and speciation analysis of chromium (Cr) and arsenic (As) were performed using inductively coupled plasma-mass spectrometry (ICP-MS) and high-performance liquid chromatography hyphenated to inductively coupled plasma-mass spectrometry (HPLC-ICP-MS), respectively. The total concentrations of Cr and As were below the maximum permissible levels (MPLs) set by the World Health Organization (WHO) and South Africa’s Department of Water Affairs and Forestry (DWAF) for drinking water. The soil quality guideline value of 64.0 µg/g for Cr was surpassed in most sites and posed a great risk to the vegetables growing in it, whereas the guideline value of 12.0 µg/g for As was surpassed in one sampling site. The observed high concentrations in soil could be linked to the use of fertilizers and atmospheric deposits introduced through coal burning by power stations. In vegetables, the total Cr concentration surpassed the recommended MPL of 0.5 µg/g, rendering the vegetables unsafe for human consumption. Concentrations ranging from 197 to 1180 ng/g and 374 to 17400 ng/g were detected for Cr(VI) and Cr(III), respectively. The consumption of vegetables containing high levels of Cr and As would result in health risks in adults and children as the total hazard quotient (THQ) exceeded 1. The consumption of some vegetables particularly by children could cause serious health risks as the THQ > 10 was observed for some Cr-contaminated vegetables. The incremental lifetime cancer risk (ILCR) threshold of 1 × 10−4 was exceeded, indicating that the overall consumption of vegetables had high cancer risks for adults and children. This study suggests that the consumption of vegetable samples would lead to health risks in the population.

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Section: Species Identification and Correction Of Polyatomic Interfer...mentioning

confidence: 99%

Bioaccumulation and Human Health Risk Assessment of Arsenic and Chromium Species in Water–Soil–Vegetables System in Lephalale, Limpopo Province, South Africa

Dintsi,

Letsoalo,

Ambushe

2023

Minerals

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“…In another study, the optimum extraction parameters, chromatographic separation conditions, and interference correction, for the simultaneous extraction and quantification of As III , As V , DMA, MMA and Cr VI from sediment by HPLC-ICP-MS has been reported. 86 A gradient mobile phase employing 10 mmol L −1 and 70 mmol L −1 NH 4 NO 3 at pH 8.7 enabled baseline separation of the species within a total run time of 18 minutes. The optimum extraction conditions, a mixture containing 0.375 mol L −1 (NH 4 ) 2 HPO 4 and 50 mmol L −1 EDTA at pH 7 as an extraction buffer, extraction temperature of 150 °C and volume of 15 mL were attained by factorial design.…”

Section: Elemental Speciation Analysismentioning

confidence: 99%

Atomic Spectrometry Update: review of advances in elemental speciation

Clough

Harrington

Hill

et al. 2021

J. Anal. At. Spectrom.

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“…It concluded that the effects of industrial pollution and the mismanagement of sewage and agricultural waste have influenced the gradual accumulation of these toxic species in the sediments under study. In this case, a digestion stage involving significant volumes of strong acids and oxidants was also proposed, although the use of organic solvents within the chromatographic separation was avoided [127].…”

Section: Multielemental Speciation Analysismentioning

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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Synchronous Extraction and Quantitative Speciation of Arsenic and Chromium in Sediments by High-Performance Liquid Chromatography – Inductively Coupled Plasma – Mass Spectrometry (HPLC-ICP-MS)

Cited by 10 publications

References 32 publications

Bioaccumulation and Human Health Risk Assessment of Arsenic and Chromium Species in Water–Soil–Vegetables System in Lephalale, Limpopo Province, South Africa

Bioaccumulation and Human Health Risk Assessment of Arsenic and Chromium Species in Water–Soil–Vegetables System in Lephalale, Limpopo Province, South Africa

Atomic Spectrometry Update: review of advances in elemental speciation

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

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