Rare earth element (REE) in surface mangrove sediment by instrumental neutron activation analysis

Kumar, Krishnan; Saion, Elias; Halimah, M.K.; Yap, Chee Kong; Hamzah, Muhd Suhaimi

doi:10.1007/s10967-014-3221-z

Cited by 29 publications

(27 citation statements)

References 25 publications

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“…For uniformity and to be more typical of the sampling location, fifty sediment samples were collected and mixed. Sediment samples within range of 3.0-5.0 m adjacent to each other and approximately depth 5.0 cm were collected from the intertidal muddy region in the Jura mangrove area by using a pre-cleaned plastic scoop (Kumar et al 2014;Yap et al 2002). The collected surface sediment samples were placed in re-sealable polyethylene plastic bags labeled and held in an icebox at 4°C.…”

Section: Study Sites and Samples Collectionmentioning

confidence: 99%

“…The powdered samples were divided into four subsamples of approximately 150 mg and 200 mg and stored separately in heatsealed polyethylene vials for short and long radiation respectively. The half-lives and gamma energies of the radionuclides were used to identify them, and the element concentrations were determined using a comparative method (Kumar et al 2014;Benarfa et al 2020). The standard reference materials SRM (IAEA-Soil-7, SL-1 (Lake Sediment) were used as a multi-element comparator.…”

Section: Chemical Measurementmentioning

confidence: 99%

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Determination of Trace Elements in Sediments Samples by Using Neutron Activation Analysis

et al. 2022

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The Juru River is a highly industrialized, urbanized, and agricultural catchment. This study aimed to investigate trace elements in Juru mangrove sediments, including geochemical baselines and enrichment. Sediment was collected from the mangrove in Juru, Penang, Malaysia. A total of eight target elements was examined. Instrumentation activation analysis (INAA) was used to determine the concentration of Fe, V, Cr, Zn and Co. Atomic absorption spectrometry (AAS) was used to determine the concentration of elements that not detectable by INAA (Cd, Pb, and As). In both methods, validated reference material studies were used for validation of the methodology. Metal pollution was estimated using the Enrichment Factor (EF), Geoaccumulation Index (Igeo), Contamination Factor (CF), and Pollutant Load Index (PLI). The EF, Igeo, and CF ranges from 0.45–7.96, -2.18 – 1.95, and 0.33–5.83 respectively. The order of accumulation of the elemental concentration found was Fe > Zn> Cr > V > Pb > As > Co >Cd. The computed mean value of PLI exceeds the unit (PLI > 1).

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Section: Study Sites and Samples Collectionmentioning

confidence: 99%

Section: Chemical Measurementmentioning

confidence: 99%

Determination of Trace Elements in Sediments Samples by Using Neutron Activation Analysis

et al. 2022

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“…Several analytical methodologies have been applied to the determination of REEs in practical samples, such as neutron activation analysis (NAA) [ 8 – 10 ], X-ray fluorescence (XRF) spectrometry [ 11 – 13 ], inductively coupled plasma mass spectrometry (ICP-MS) [ 14 – 17 ] and inductively coupled plasma optical emission spectrometry (ICP-OES) [ 18 – 22 ]. However, NAA not only requires a nuclear reactor, but also a complicated disposal process, so it is not suitable for common sample detection.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous determination of trace rare-earth elements in simulated water samples using ICP-OES with TODGA extraction/back-extraction

Li¹,

Gong²,

Qiu³

et al. 2017

PLoS ONE

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The determination of trace rare-earth elements (REEs) can be used for the assessment of environmental pollution, and is of great significance to the study of toxicity and toxicology in animals and plants. N, N, N′, N′-tetraoctyl diglycolamide (TODGA) is an environmental friendly extractant that is highly selective to REEs. In this study, an analytical method was developed for the simultaneous determination of 16 trace REEs in simulated water samples by inductively coupled plasma optical emission spectroscopy (ICP-OES). With this method, TODGA was used as the extractant to perform the liquid-liquid extraction (LLE) sample pretreatment procedure. All 16 REEs were extracted from a 3 M nitric acid medium into an organic phase by a 0.025 M TODGA petroleum ether solution. A 0.03 M ethylenediaminetetraacetic acid disodium salt (EDTA) solution was used for back-extraction to strip the REEs from the organic phase into the aqueous phase. The aqueous phase was concentrated using a vacuum rotary evaporator and the concentration of the 16 REEs was detected by ICP-OES. Under the optimum experimental conditions, the limits of detection (3σ, n = 7) for the REEs ranged from 0.0405 ng mL-1 (Nd) to 0.5038 ng mL-1 (Ho). The relative standard deviations (c = 100 ng mL-1, n = 7) were from 0.5% (Eu) to 4.0% (Tm) with a linear range of 4–1000 ng mL-1 (R2 > 0.999). The recoveries of 16 REEs ranged from 95% to 106%. The LLE-ICP-OES method established in this study has the advantages of simple operation, low detection limits, fast analysis speed and the ability to simultaneously determine 16 REEs, thereby acting as a viable alternative for the simultaneous detection of trace amounts of REEs in water samples.

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“…Generally, determination of samples containing rare earth elements has been performed using sensitive instruments. These include inductively coupled plasma‐atomic emission spectrometry and inductively coupled plasma‐mass spectrometry, with sample liquefaction by acid decomposition or alkali fusion and instrumental neutron activation analysis using a nuclear reactor. Alternatively, various minor elements have been determined by XRF using glass beads with a low‐dilution ratio of sample to flux.…”

Section: Introductionmentioning

confidence: 99%

Development of undersized (12.5 mm diameter) low‐dilution glass beads for X‐ray fluorescence determination of 34 components in 200 mg of igneous rock for applications with geochemical and archeological silicic samples

2015

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A low‐dilution, undersized (12.5 mm diameter) glass–bead technique was developed for X‐ray fluorescence determination of 34 components (Na2O, MgO, Al2O3, SiO2, P2O5, K2O, CaO, TiO2, MnO, Fe2O3, V, Cr, Co, Ni, Cu, Zn, Rb, Sr, Y, Zr, Nb, Cs, Ba, La, Pr, Nd, Sm, Gd, Dy, Er, Yb, Hf, W, and Pb) in precious silicic samples for geochemistry and archeology. This preparation was consolidated based on the properties of the specimen, including disk formability and detachability from a small crucible, through variation of the amounts of the two samples (basaltic and granitic rocks) and releasing reagent. The specimen was prepared by fusing a mixture of 200 mg of powdered sample, 200 mg of lithium tetraborate as a flux, and 60 µl of 18.42 mass% lithium chloride solution as a releasing agent in a small platinum crucible. Calibration curves were drawn using synthetic calibration standards, which were prepared by compounding chemical reagents, such as oxides, carbonates, and diphosphates containing analytes. The calibration curves showed good linearity with correlation coefficient values greater than 0.990. Using the proposed method, we determined 34 components in five igneous rock reference samples. The results were in agreement with the recommended values, accounting for uncertainties. With this method, preparation requires only small amounts of the powdered sample and alkali flux; however, still allowing for determination of many analytes, which is advantageous when dealing with limited quantities of precious samples. The present method has potential applications in the chemical characterization of various geological and archeological samples. Copyright © 2015 John Wiley & Sons, Ltd.

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Rare earth element (REE) in surface mangrove sediment by instrumental neutron activation analysis

Cited by 29 publications

References 25 publications

Determination of Trace Elements in Sediments Samples by Using Neutron Activation Analysis

Determination of Trace Elements in Sediments Samples by Using Neutron Activation Analysis

Simultaneous determination of trace rare-earth elements in simulated water samples using ICP-OES with TODGA extraction/back-extraction

Development of undersized (12.5 mm diameter) low‐dilution glass beads for X‐ray fluorescence determination of 34 components in 200 mg of igneous rock for applications with geochemical and archeological silicic samples

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