Methods for the determination of silicon and aluminum in fuel oils and in crude oils by X-ray fluorescence spectrometry

Pedrozo-Peñafiel, Marlin J.; Doyle, Adriana; Mendes, Luiz A.N.; Tristão, Maria Luiza B.; Saavedra, A.; Aucélio, Ricardo Q.

doi:10.1016/j.fuel.2019.01.144

Cited by 12 publications

(4 citation statements)

References 14 publications

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“…However, kerosene samples showed an increase in the levels of Al ranging from 26.8 to 47.0 µg/g and this increase might be caused by contamination from the Al based storage tanks. Moreover, Al residues in crude oils operate as catalyst poison during refining process, therefore its levels must be monitored, thereby controlled 38 .…”

Section: Resultsmentioning

confidence: 99%

Microwave-assisted hydrogen peroxide digestion followed by ICP-OES for determination of metals in selected fuel oils

Mdluli,

Knottenbelt,

Nomngongo

et al. 2024

Sci Rep

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This work describes a greener and cost-effective microwave-assisted hydrogen peroxide digestion (MA-HPD) with the addition of 1 mL of HNO3 (70% v/v) to enhance extraction of selected metals (Al, Ba, Cd, Co, Cr, Cu, Mg, Na, Ni, Pb, Sb, Ti and V) in crude-oil, diesel, gasoline and kerosene samples prior to inductively coupled plasma-optical emission spectroscopic (ICP-OES) analysis. The most influential parameters of the MA-HPD method were investigated by using multivariate optimization tools (two-level full factorial and central composite designs) and fuel oil certified reference material (NIST1634c). The optimum conditions were observed to be 245 ℃ microwave temperature, 25 min digestion time, 0.1 g sample mass and 5 M H2O2 were the optimum digestion conditions with accepted accuracy (104.8–117.7%) and precision (≤ 4.1%). In overall, the metals that reported high concentrations in the crude oil, diesel, gasoline, and kerosene samples were Na (51.94–58.86 mg/kg) and Mg (36.08–47.4 mg/kg), while Cu was the lowest (0.55–2.89 mg/kg). When comparing the obtained concentration levels with other literature reports, a conclusion can be drawn that South Africa is importing oils of reasonable quality.

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Section: Resultsmentioning

confidence: 99%

Microwave-assisted hydrogen peroxide digestion followed by ICP-OES for determination of metals in selected fuel oils

Mdluli,

Knottenbelt,

Nomngongo

et al. 2024

Sci Rep

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“…Establishing GIs for agricultural products encourages the formation of regional brands, which can, in turn, bolster industrial prosperity and stimulate local economic development. [14] However, it is challenging for a single low-value agricultural product to maintain long-term consumer interest, making it necessary to enhance the added value of agricultural products and extend the agricultural industry chain. From the cultural perspective, integrating agricultural GIs with tourism can create a new pathway for the combined development of rural culture and tourism.…”

Section: Cultural Impactmentioning

confidence: 99%

Revitalizing Rural China: Research on The Development Status and Communication Strategy of Geographical Indication Brands with A Case Study of Jingyang Fu Tea

2023

EHSS

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Geographical indications of agricultural products are legal signs used to identify distinctive agricultural products from specific regions, with the product’s name being linked to its geographical origins. Since 2008, China has been managing the geographical indications of agricultural products, turning ordinary crops such as fruits and vegetables into geographical indication brands. This management approach not only promotes rural economic development but also accelerates rural industry development. This research aims to analyze factors that limit agricultural product development and present a communication strategy using the case of Jingyang Fu Tea to explore how to promote the long-term development of the tea industry in the specific context of China’s rural revitalization.

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“…Atomic absorption spectrophotometry (AAS) [10], electrothermal vaporization inductively coupled plasma mass spectrometry (V/ICP-MS) [11][12][13], X-ray fluorescence spectrometry [14], voltammetry [15,16], liquid chromatography [17,18], colorimetry and fluorometry [19], and high resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS GFAAS) [20] were the main reported techniques for quantifying trace Al 3 + ions. However, these techniques are costly, take a lot of time because there are several steps involved in sample preparation, require pricey chemicals and solvents, and require skill using such instruments.…”

Section: | Introductionmentioning

confidence: 99%

Exploitation of bis(tert‐butylaminomethyl)pyridine as a chemical modifier in a carbon paste electrode for sensitive and selective potentiometric determination of Al³⁺ ion in pharmaceutical and water samples

Ali,

Mohamed,

Zayed

et al. 2023

Electroanalysis

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Methods for the determination of silicon and aluminum in fuel oils and in crude oils by X-ray fluorescence spectrometry

Cited by 12 publications

References 14 publications

Microwave-assisted hydrogen peroxide digestion followed by ICP-OES for determination of metals in selected fuel oils

Microwave-assisted hydrogen peroxide digestion followed by ICP-OES for determination of metals in selected fuel oils

Revitalizing Rural China: Research on The Development Status and Communication Strategy of Geographical Indication Brands with A Case Study of Jingyang Fu Tea

Exploitation of bis(tert‐butylaminomethyl)pyridine as a chemical modifier in a carbon paste electrode for sensitive and selective potentiometric determination of Al³⁺ ion in pharmaceutical and water samples

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Methods for the determination of silicon and aluminum in fuel oils and in crude oils by X-ray fluorescence spectrometry

Cited by 12 publications

References 14 publications

Microwave-assisted hydrogen peroxide digestion followed by ICP-OES for determination of metals in selected fuel oils

Microwave-assisted hydrogen peroxide digestion followed by ICP-OES for determination of metals in selected fuel oils

Revitalizing Rural China: Research on The Development Status and Communication Strategy of Geographical Indication Brands with A Case Study of Jingyang Fu Tea

Exploitation of bis(tert‐butylaminomethyl)pyridine as a chemical modifier in a carbon paste electrode for sensitive and selective potentiometric determination of Al3+ ion in pharmaceutical and water samples

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Exploitation of bis(tert‐butylaminomethyl)pyridine as a chemical modifier in a carbon paste electrode for sensitive and selective potentiometric determination of Al³⁺ ion in pharmaceutical and water samples