scholarly journals Content of rare earth elements in basalt aggregate from Winna Góra, Poland

2021 ◽  
pp. 315-326
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Mineral Composition ◽  
Rietveld Method ◽  
Total Content ◽  
Trace Element Content ◽  
Icp Ms ◽  
A Minor ◽  
Minor Content ◽  
Lower Silesia

Seek for new Rare Earth Elements (REE) sources encourage looking for easily available sources located in Europe. REE in evolved magmatic systems are predominantly associated with alkali environments. Therefore, it was decided to identify the content of REE in alkali igneous rocks of the Winna Góra basalt quarry located in Lower Silesia, Poland. In this study, a commercially available basalt aggregate from Winna Góra deposit located in the south-western part of Poland near Jawornik was examined for REE content. Mineral content and chemical composition were examined with a light microscope, XRD and XRF, whereas trace element content was measured with the ICP-MS technique. A new method of sample preparation for the purpose of REE identification in basalt aggregate based on pressure microwave mineralisation was developed. Mineral composition and TAS diagram classify aggregate as tephrite. The mineral composition of samples reflects typical mafic and ultramafic rocks. Quantitative mineralogical analysis by the Rietveld method showed that the main minerals are anorthite (46.7%) and augite (37.4%) with a minor content of forsterite (7.5%), nepheline (7.4%) and apatite below 1%. The total content of REE does not exceed 132 ppm. Chondrite normalised curves show the highest concentration of La and Pr. In the case of HREE, the majority of elements (Eu, Tb, Dy, Ho, Er, Yb) concentrations were below 1 ppm, a Tm and Lu were not detected. The low enrichment in HREE was also reflected in La/Gd ratios. Obtained results are comparable to the REE contents in the western part of the Cenozoic European Volcanic Province.

Geochemical characteristics and geologic significance of rare earth elements in oil shale of the Yan’an Formation in the Tanshan area, in the Liupanshan Basin, China

2021 ◽  
pp. 1-41
Author(s):  
Lianfu Hai ◽  
Qinghai Xu ◽  
Caixia Mu ◽  
Rui Tao ◽  
Lei Wang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Oil Shale ◽  
Sedimentary Environment ◽  
Moderate Degree ◽  
Material Source ◽  
Icp Ms ◽  
Ree Distribution ◽  
Heavy Rare Earth Elements ◽  
Degree Of Differentiation

In the Tanshan area, which is at the Liupanshui Basin, abundant oil shale resources are associated with coals. We analyzed the cores, geochemistry of rare earth elements (REE) and trace element of oil shale with ICP-MS technology to define the palaeo-sedimentary environment, material source and geological significance of oil shale in this area. The results of the summed compositions of REE, and the total REE contents (SREE), in the Yan'an Formation oil shale are slightly higher than the global average of the composition of the upper continental crustal (UCC) and are lower than that of North American shales. The REE distribution pattern is characterized by right-inclined enrichment of light rare earth elements (LREE) and relative loss of heavy rare earth elements (HREE), which reflects the characteristics of crustal source deposition. There is a moderate degree of differentiation among LREE, while the differences among HREE are not obvious. The dEu values show a weak negative anomaly and the dCe values show no anomaly, which are generally consistent with the distribution of REE in the upper crust. The characteristics of REE and trace elements indicate that the oil shale formed in an oxygen-poor reducing environment and that the paleoclimatic conditions were relatively warm and humid. The degree of differentiation of REE indicates that the sedimentation rate in the study area was low, which reflected the characteristics of relatively deep sedimentary water bodies and distant source areas. The results also proved that the source rock mainly consisted of calcareous mudstone, and a small amount of granite was also mixed in.

Effective procedures for the determination of As, Cd, Cu, Fe, Hg, Mg, Mn, Ni, Pb, Se, Th, Zn, U and rare earth elements in plants and foodstuffs

2018 ◽  
Vol 10 (33) ◽  
pp. 4094-4103 ◽  
Author(s):  
Fernanda Pollo Paniz ◽  
Tatiana Pedron ◽  
Bruna Moreira Freire ◽  
Daiane Placido Torres ◽  
Fábio Ferreira Silva ◽  
...  
Keyword(s):  
Trace Elements ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Icp Ms ◽  
International Regulations ◽  
Effective Procedures

There are several international regulations regarding trace elements. The use of ICP-MS for their determination is usually a difficult task, especially when Hg is one of the target elements.

scholarly journals Comparison of the Mineral and Nutraceutical Profiles of Elephant Garlic (Allium ampeloprasum L.) Grown in Organic and Conventional Fields of Valdichiana, a Traditional Cultivation Area of Tuscany, Italy

Biology ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1058
Author(s):  
Stefano Loppi ◽  
Riccardo Fedeli ◽  
Giulia Canali ◽  
Massimo Guarnieri ◽  
Stefano Biagiotti ◽  
...  
Keyword(s):  
Trace Elements ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Water Content ◽  
Human Health ◽  
Soluble Sugars ◽  
Allium Ampeloprasum ◽  
Icp Ms ◽  
Essential Trace Elements ◽  
Reference Plant

In the Valdichiana area (Tuscany, Italy) an ancient native landrace of elephant garlic (Allium ampeloprasum L.), locally known as “Aglione della Valdichiana”, has long been cultivated. The aim of this study was to check whether there are differences in the mineral and nutraceutical profiles of the Aglione della Valdichiana cultivated conventionally and organically. Based on the analysis by ICP-MS of a wide array of major, minor, essential, and non-essential trace elements as well as rare earth elements, and the evaluation of the content of polyphenols, flavonoids, antioxidants, soluble proteins, soluble sugars, and starch, as well as the weight and water content, it was concluded that differences in the mineral and nutraceutical profiles of organically and conventionally grown bulbs were very limited. Only a statistically (p < 0.05) higher concentration of Cd (+2620%), Co (+113%), Mn (+55%), Rb (+180%), and Sb (+180%), as well as glucose (+37%) in conventionally cultivated bulbs emerged. Cadmium was the only element slightly higher than in the “reference plant,” but with a negligible risk (three orders of magnitude lower) for human health based on consumption. It is concluded that we failed to find evidence of healthier food or a higher nutraceutical quality for organically cultivated elephant garlic.

Analysis of ultra-low level rare earth elements in magnetite samples from banded iron formations using HR-ICP-MS after chemical separation

2014 ◽  
Vol 6 (15) ◽  
pp. 6125-6132 ◽  
Author(s):  
Wenjun Li ◽  
Xindi Jin ◽  
Bingyu Gao ◽  
Changle Wang ◽  
Lianchang Zhang
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Reference Materials ◽  
Chemical Separation ◽  
Banded Iron Formations ◽  
Low Level ◽  
Icp Ms ◽  
Ree Patterns ◽  
Iron Formations

Comparison between the REE data of this work and literature values by Z. S. Yu et al., Sampaio et al., Dulski et al., and Bau et al. in reference materials FER-2 (a) and FER-3 (b) using PAAS-normalized REE patterns.

Calcium alginate microparticles for rare earth elements preconcentration prior to ICP-MS measurements in fresh water

2018 ◽  
Vol 10 (35) ◽  
pp. 4242-4250 ◽  
Author(s):  
Gabriel G. Arantes de Carvalho ◽  
Denise F. S. Petri ◽  
Pedro V. Oliveira
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Fresh Water ◽  
Calcium Alginate ◽  
Fresh Waters ◽  
Ms Analysis ◽  
Icp Ms

Calcium alginate microparticles were used for the preconcentration of rare earth elements for ICP-MS analysis of fresh waters.

Determination Of Rare Earth Elements In Minerals And Soils By ICP-MS. Prior Separation By Ion Exchange

2021 ◽  
Vol 1 (1) ◽  
pp. 19-24
Author(s):  
Leydis Leal Acosta ◽  
Juan Reinald Estevez Álvarez ◽  
Alfredo Montero Álvarez ◽  
Zahily Herrero Fernández ◽  
Manuel Rapado Paneque ◽  
...  
Keyword(s):  
Rare Earth ◽  
Ion Exchange ◽  
Rare Earth Elements ◽  
Icp Ms
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