BERYLLIUM MINERALS

Beryllium is a chemical element composition of the Group 2 of the Periodic Table of Chemical Elements. It does not crystallize as a natural solid and exhibits a crustal abundance of 2.8 ppm. It is a chemical element among the trace elements with low representativity, together with erbinm and bromine. It shows a big chemical reactivity, and a low abundance in the chemical composition of minerals (only 96 minerals have beryllium in their chemical compositions). The principal beryllium-bearing minerals for industrial usages are beryl and bertrandite, and secondary sources are helvite, chrysoberyl, euclase, beryllonite, and phenakite. This review presents a synopsis of the beryllium-bearing minerals as a contribution to the scientific knowledge of these substances.

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ОПРЕДЕЛЕНИЕ МИКРОЭЛЕМЕНТНОГО СОСТАВА НЕКОТОРЫХ МИНЕРАЛЬНЫХ ВОД ГРУЗИИ

World Science ◽

10.31435/rsglobal_ws/30042019/6468 ◽

2019 ◽

Vol 1 (4(44)) ◽

pp. 35-37

Author(s):

Гогичаишвили Бела Арменовна ◽

Дидбаридзе Изольда Сардионовна ◽

Брегадзе Нестан Левановна ◽

Махвиладзе Маиа Гелановна

Keyword(s):

Trace Elements ◽

Biological Activity ◽

Trace Element ◽

Chemical Elements ◽

Trace Element Composition ◽

Element Composition ◽

Mineral Waters ◽

Cobalt Chromium ◽

Nickel Zinc ◽

Copper Nickel

Among the chemical elements contained in small quantities in mineral waters, of interest are trace elements that have a certain biological activity. According to the method developed by us, the content of copper, nickel, zinc, cobalt, chromium and manganese in certain mineral waters of Western Georgia was determined. The obtained data on the content of trace elements in mineral waters are of practical value, information about the trace element composition will contribute to the further study of these waters in hydrogeological, hydrochemical and balneological aspects.

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CHEMICAL ELEMENT COMPOSITION OF HYPERICUM PERFORATUM PLANTS: ELEMENTS WHICH CONCEN-TRATIONS ARE NOT REGULATED

chemistry of plant raw material ◽

10.14258/jcprm.2019023965 ◽

2018 ◽

pp. 179-187

Author(s):

Tat'yana Ivanovna Siromlya ◽

Yuliya Vasil'yevna Zagurskaya

Keyword(s):

Chemical Element ◽

Hypericum Perforatum ◽

Chemical Elements ◽

West Siberia ◽

Element Composition ◽

Similar Data ◽

Plant Parts ◽

Element Concentrations ◽

Hypericum Perforatum L ◽

High Concentrations

Hypericum perforatum L. (St. John’s wort) is a popular medicinal plant, but its chemical element composition has been studied insufficiently, especially of the plants originated in the Russian Federation. The aim of the study was to examine chemical element composition of Hypericum perforatum L plants originating from the south of West Siberia and to review similar data on plants grown in other climatic zones and regions, attempting to establish chemical elements' ranges in the phytomass of the studied species. Chemical element concentrations were determined by AES in 100 samples of aboveground and 60 samples of belowground H. perforatum plant parts collected in West Siberia (Novosibirsk and Kemerovo regions, the Altai Republic). Total concentrations of various chemical elements did not differ (P≤0.05) in different samples. The aboveground plant parts were found to have very high concentrations of K, Са, P, Si, Mg (n×103–104 mg/kg) alongside with high concentrations of Al, Fe, Na (n×102 mg/kg) and moderate concentrations of Мn, Sr, Ba, Zn, B, Ti, Cu (n×10 mg/kg), whereas such elements as Ni, Zr (n mg/kg) were found in decreased concentrations, while V, Cr, Mo, Co, Y, Ga showed low concentrations (n×10-1 mg/kg), Sc, Ве, Yb (n×10-2 mg/kg) being very low. The accumulation of Ba and Sr in plants revealed some regional peculiarities as their concentrations in plants of Siberian origin was higher than in plants of the European one. The average chemical element concentrations for a wide set of world data displayed a wider range, with extremely high or low values, as compared to the regional range of variation. The studied plants had no barriers for the uptake of Zn, Р, B, Mg, Mn and K, but for Са, Ва, Sr, Mo, Co in different samples the root barrier coefficient was higher, lower or equal to 1.

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Variation of macroand trace elements in organs of the blue honeysuckle subspecies of various environmental and geographic provenance when grown in the Near-Ob foreststeppe (West Siberia, Russia)

BIO Web of Conferences ◽

10.1051/bioconf/20213800017 ◽

2021 ◽

Vol 38 ◽

pp. 00017

Author(s):

Irina G. Boyarskikh ◽

Tatyana I. Siromlya

Keyword(s):

Trace Elements ◽

Chemical Element ◽

Far East ◽

West Siberia ◽

Distribution Patterns ◽

Element Composition ◽

Organ Distribution ◽

Lonicera Caerulea ◽

The Far East ◽

Similar Chemical

The variation limits and organ distribution of macroand trace elements were determined in plants of the three subspecies of Lonicera caerulea L. The leaves, as compared with the stems, were found to accumulate more of B, Са, Mg, Mo, P and Sr and less of Al, Mn, Ti and Zn. The plants of different subspecies, grown on soils of the similar chemical element composition, showed statistically significant differences in contents and organ distribution patterns of Al, Cr, Cu, Fe, Mg, Mo, Na, Ni, Pb, Si, Ti and Zn. The stems of the subspecies of the Far East provenance (L. сaerulea subsp. kamtschatica and L. сaerulea subsp. venulosa) had abnormally high contents of Al, Cr, Fe, Na, Si and Ti.

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Determination of trace element composition. Clinical and laboratory algorithms. Rationale for the determination of trace elements in humans

Terapevt (General Physician) ◽

10.33920/med-12-2003-05 ◽

2020 ◽

pp. 48-54

Author(s):

Vitaliya Morozova

Keyword(s):

Trace Elements ◽

Trace Element ◽

Chemical Elements ◽

Physiological Role ◽

Trace Element Composition ◽

Element Composition ◽

The Body ◽

Laboratory Diagnostics ◽

Endocrine Regulation

There are more than 70 chemical elements in the human body. To date, the need for more than 20 trace elements has been determined: deficiency in them leads to disruption of the neural, immune and endocrine regulation and adaptive potential, increases the risk of infectious diseases and development of their chronicity. A prolonged absence of certain nutrients in the diet, or vice versa, excess of them in soil and water, can cause irreversible changes in the body. The article discusses physiological role of minerals, macro and micronutrients, features of their metabolism, content standards, causes of their shortage in the diet. Recommendations on the choice of material for the study of the trace element composition are given and possibilities of modern laboratory diagnostics are presented.

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Phosphorus minerals in tonstein; coal seam 405 at Sośnica-Makoszowy coal mine, Upper Silesia, southern Poland

Acta Geologica Polonica ◽

10.2478/agp-2013-0012 ◽

2013 ◽

Vol 63 (2) ◽

pp. 271-281 ◽

Cited By ~ 5

Author(s):

Magdalena Kokowska-Pawłowska ◽

Jacek Nowak

Keyword(s):

Trace Elements ◽

Coal Seam ◽

Mineral Composition ◽

Coal Mine ◽

Chemical Compositions ◽

Coal Basin ◽

Upper Silesia ◽

Southern Poland ◽

Basin Area

Abstract Kokowska-Pawłowska, M. and Nowak, J. 2013. Phosphorus minerals in tonstein; coal seam 405 at Sośnica- Makoszowy coal mine, Upper Silesia, southern Poland. Acta Geologica Polonica, 63 (2), 271-281. Warszawa. The paper presents results of research on tonstein, which constitutes an interburden in coal seam 405 at the Sośnica- Makoszowy coal mine, Makoszowy field (mining level 600 m), Upper Silesia, southern Poland. The mineral and chemical compositions of the tonstein differ from the typical compositions described earlier for tonsteins from Upper Silesia Coal Basin area. Additionally, minerals present in the tonsteins include kaolinite, quartz, kaolinitised biotite and feldspars. The presence of the phosphatic minerals apatite and goyazite has been recognized. The presence of gorceixite and crandallite is also possible. The contents of CaO (5.66 wt%) and P2O5 (6.2 wt%) are remarkably high. Analysis of selected trace elements demonstrated high contents of Sr (4937 ppm) and Ba (4300 ppm), related to the phosphatic minerals. On the basis of mineral composition the tonstein has been identified as a crystalline tonstein, transitional to a multiplied one.

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DISTRIBUTION OF DISSOLVED CHEMICAL ELEMENTS IN THE YENISEI RIVER ESTUARY AND ADJACENT WATER AREA OF THE KARA SEA

Proceedings of International Conference "Managinag risks to coastal regions and communities in a changinag world" (EMECS'11 - SeaCoasts XXVI) ◽

10.21610/conferencearticle_58b43172445b0 ◽

2017 ◽

Author(s):

Alla Savenko ◽

Oleg Pokrovsky ◽

Irina Streletskaya ◽

...

Keyword(s):

Trace Elements ◽

River Runoff ◽

Major Ions ◽

Chemical Elements ◽

River Estuary ◽

Water Area ◽

Kara Sea ◽

Yenisei River ◽

Adjacent Water ◽

The Yenisei River

The distribution of dissolved chemical elements (major ions, nutrients, and trace elements) in the Yenisei River estuary and adjacent water area in 2009 and 2010 are presented. These results were compared to the data obtained during previous hydrochemical studies of this region. The transport of major cations (Na, K, Mg, Ca) and some trace elements (Rb, Cs, Sr, B, F, As, Mo, U) in the estuary follows conservative mixing. Alkalinity also belongs to conservative components, however this parameter exhibits substantial spatial heterogeneity caused by complex hydrological structure of the Yenisei Bay and adjoining part of the Kara Sea formed under the influence of several sources of desalination and salty waters inflow. Concentrations of Pmin, Si, and V in the desalinized waters of photic layer decrease seaward owing to uptake by phytoplankton. The losses of these elements reach 30–57, 30, and 9% of their supply by river runoff, respectively. The content of dissolved phosphates and vanadium in the intermediate and near-bottom layers of the Yenisei River estuary strongly increases with salinity due to regeneration of precipitated organic matter, whereas silica remineralization is much less pronounced. Barium is characterized by additional input of dissolved forms in the mixing zone in the quantity comparable to that carried out by river runoff. This may be caused by its desorption from river suspended matter due to ion exchange. The transport of dissolved Al and Mn in the estuarine zone is probably controlled by the coagulation and flocculation of organic and organomineral colloids, which is indicated by a decrease in the concentration of these elements at the beginning of the estuary (31 and 56%, respectively) followed by a stable concentration further seaward.

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Soil and Leaf Nutrients Drivers on the Chemical Composition of the Essential Oil of Siparuna muricata (Ruiz & Pav.) A. DC. from Ecuador

Molecules ◽

10.3390/molecules26102949 ◽

2021 ◽

Vol 26 (10) ◽

pp. 2949

Author(s):

Juan I. Burneo ◽

Ángel Benítez ◽

James Calva ◽

Pablo Velastegui ◽

Vladimir Morocho

Keyword(s):

Gas Chromatography ◽

Chemical Composition ◽

Secondary Metabolites ◽

Essential Oil ◽

Chemical Elements ◽

Climatic Conditions ◽

Gas Chromatography Mass Spectrometry ◽

Chemical Compositions ◽

Leaf Nutrients ◽

First Time

Chemical compositions of plants are affected by the initial nutrient contents in the soil and climatic conditions; thus, we analyzed for the first time the effects of soil and leaf nutrients on the compositions of the essential oils (EOs) of Siparuna muricata in four different localities in Ecuador. EOs were obtained by hydrodistillation and analyzed by gas chromatography/mass spectrometry (GC/MS) and a gas chromatography/flame ionization detector (GC/FID). Enantiomeric distribution by GC/MS was determined, modifying the enantiomeric separation of β-pinene, limonene, δ-elemene, β-bourbonene, cis-cadina-1 (6), 4-diene and atractylone. A total of 44 compounds were identified. The most representative for L1 were guaiol, atractylone and 4-diene; for L2, cis-cadina-1(6),4-diene and myrcene; for L3, atractylone, myrcene and germacrene B; and finally, L4 germacrene B, myrcene and cis-cadina-1(6),4-diene. Correlations between soil- leaf chemical elements such as Al, Ca, Fe, Mg, Mn, N and Si in the different localities were significant with chemical composition of the essential oil of Siparuna muricata; however, correlations between soil and leaf K, P, and Na were not significant. Cluster and NMDS analysis showed high dissimilarity values of secondary metabolites between four localities related with changes in soil- leaf nutrients. Thus, the SIMPER routine revealed that not all secondary metabolites contribute equally to establishing the differences in the four localities, and the largest contributions are due to differences in guaiol, cis-cadina-1(6),4-diene, atractylone and germacrene. Our investigation showed for the first time the influences of altitude and soil- leaf chemical elements in the chemical composition of the EOs of S. muricata.

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Thermokarst lake waters across the permafrost zones of western Siberia

The Cryosphere ◽

10.5194/tc-8-1177-2014 ◽

2014 ◽

Vol 8 (4) ◽

pp. 1177-1193 ◽

Cited By ~ 48

Author(s):

R. M. Manasypov ◽

O. S. Pokrovsky ◽

S. N. Kirpotin ◽

L. S. Shirokova

Keyword(s):

Western Siberia ◽

Chemical Elements ◽

Chemical Compositions ◽

Thermokarst Lakes ◽

Thermokarst Lake ◽

Surface Areas ◽

Discontinuous Permafrost ◽

Latitudinal Position ◽

Hydrochemical Composition ◽

Lake Waters

Abstract. This work describes the hydrochemical composition of thermokarst lake and pond ecosystems, which are observed in various sizes with different degrees of permafrost influence and are located in the northern part of western Siberia within the continuous and discontinuous permafrost zones. We analysed the elemental chemical composition of the lake waters relative to their surface areas (from 10 to 106 m2) and described the elemental composition of the thermokarst water body ecosystems in detail. We revealed significant correlations between the Fe, Al, dissolved organic carbon (DOC) and various chemical elements across a latitude gradient covering approximately 900 km. Several groups of chemical elements that reflect the evolution of the studied water bodies were distinguished. Combining the data for the studied latitude profile with the information available in the current literature demonstrated that the average dissolved elemental concentrations in lakes with different areas depend specifically on the latitudinal position, which is presumably linked to (1) the elements leached from frozen peat, which is the main source of the solutes in thermokarst lakes, (2) marine atmospheric aerosol depositions, particularly near the sea border and (3) short-range industrial pollution by certain metals from the largest Russian Arctic smelter. We discuss the evolution of the chemical compositions observed in thermokarst lakes during their formation and drainage and predict the effect that changing the permafrost regime in western Siberia has on the hydrochemistry of the lakes.

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Low Density Multi-principal Element Alloy from Al-Mg-Ca-Si-B System

Revista de Chimie ◽

10.37358/rc.19.7.7330 ◽

2019 ◽

Vol 70 (7) ◽

pp. 2315-2320

Author(s):

Victor Geanta ◽

Robert Ciocoiu ◽

Ionelia Voiculescu

Keyword(s):

Chemical Composition ◽

Chemical Element ◽

Mechanical Characteristics ◽

Cast Alloy ◽

Complex Oxides ◽

Scientific Paper ◽

Chemical Compositions ◽

Low Density ◽

Principal Element ◽

Research Stage

The scientific paper presents a numerical modeling of the chemical composition for the optimization of the multicomponent light alloys in the Al-Mg-Ca-Si-B system. The effects of the proportion of each chemical element on the main characteristics of the alloy based on the mixture rule and the correlation between the melting temperature and the modulus of elasticity were analyzed numerically. The model results has reveals that even other factors must be taken into account, i.e. the mechanical characteristics which varied significantly with changing of chemical compositions. A compromise was set, by slightly increasing the density to acquire better mechanical characteristics. The selected chemical composition was then used to obtain the new low density alloy. In current research stage we conclude that the as cast alloy comprises an inhomogeneous solid solution and complex oxides. Further studies are ongoing on the experimental alloy in various states (homogenization annealed and processed by plastic deformation).

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Relation among geochemical elements in soil and red chicory as a tool for geographical origin identification.

10.5194/egusphere-egu21-15266 ◽

2021 ◽

Author(s):

Elena Marrocchino ◽

Serena Di Sarcina ◽

Carlo Ragazzi ◽

Carmela Vaccaro

Keyword(s):

Trace Elements ◽

Geographical Origin ◽

Chemical Elements ◽

Accurate Determination ◽

Analytical Techniques ◽

Food Products ◽

Geochemical Data ◽

Protected Designation Of Origin ◽

Po Delta

The identification of the geographical origin of food products is important for both consumers and producers to ensure quality and avoid label falsifications. Determination and authentication of the geographical origin of food products throughout scientific research have become recently relevant in investigations against frauds for consumer protection. Advances in methods and analytical techniques led to an increase in the application of fingerprinting analysis of foods for identification of geographical origin. Since in organic material the inorganic component is more stable than the organic one, several studies examined trace elements, suggesting the potential application for determination of geographical origin. Moreover, the studies on territoriality are based on the hypothesis that chemical elements detected in plants and in their products reflect those contained in the soil and, within these studies, the geographical features of the production area, such as the soil type and the climate, are considered relevant factors affecting the specific designation, so an accurate determination of geographical origin would be necessary to guarantee the quality and territoriality of the products.In this light, two varieties of red chicory from the southern Po Delta area have been characterized together with the soil. The two inspected red chicory varieties (long-leaves and round-leaves) are cultivated in a well-defined area in the southern part of Po Delta, in an area sited around Massenzatica (Municipality of Mesola, Province of Ferrara, NE of Italy). Sampling was undertaken between October and December 2020 and samples were collected from a randomized field. Together with the red chicory also roots and soils have been collected in order to analyze each part and correlate the geochemical data obtained using ICP-MS and XRF techniques.Purpose of this study is to establish a method to identify the geographical origin and the results confirm that some major and trace elements could be used as geochemical markers according to the geological areas. These elements, therefore, could be useful to establish geochemical fingerprints for testing the origin of this product and create a protected designation of origin label.

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