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Journal articles on the topic 'Chemical elements'

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Published: 4 June 2021
Last updated: 31 July 2024

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1

Tejeda, Silvia, and Joaquin Palacios. "Chemical Elements Bingo." Journal of Chemical Education 72, no. 12 (December 1995): 1115. http://dx.doi.org/10.1021/ed072p1115.

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2

Harrison, Thomas G. "Chemical Elements (Fleisher, Paul)." Journal of Chemical Education 64, no. 1 (January 1987): A25. http://dx.doi.org/10.1021/ed064pa25.

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3

Charushin, V. N., Yu A. Titova, and E. R. Milaeva. "Chemical Elements in Medicine." Herald of the Russian Academy of Sciences 90, no. 2 (March 2020): 229–38. http://dx.doi.org/10.1134/s1019331620020112.

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4

Lutovinov, A. A. "Chemical Elements in Space." Herald of the Russian Academy of Sciences 90, no. 2 (March 2020): 239–44. http://dx.doi.org/10.1134/s1019331620020136.

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5

Katvala, Erik Cowing, and Charles M. Henderson. "Chemical element distributions within conodont elements and their functional implications." Paleobiology 38, no. 3 (2012): 447–58. http://dx.doi.org/10.1666/11038.1.

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Electron microprobe analyses of platform (pectiniform Pa) elements of Permian conodonts reveal detailed and systematic chemical element distributions. The crown of the conodont element is more densely mineralized than the basal body and shows evidence of less dense mineralization in areas of rapid growth. Patterns in sodium and sulfur concentrations indicate oral to aboral differentiation within conodont elements. These chemical element patterns support oral exposure during life and functional use as a tooth, and they approximate the erupted and embedded positions of the conodont tooth when the animal was alive. Previously unrecognized spatial distributions of geochemically important chemical elements warrant consideration in future geochemical studies of conodonts.
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6

Türler, Andreas. "Chemical Experiments with Superheavy Elements." CHIMIA International Journal for Chemistry 64, no. 5 (May 26, 2010): 293–98. http://dx.doi.org/10.2533/chimia.2010.293.

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7

Aleksandrov, V. D. "Crystallographic table of chemical elements." Crystallography Reports 59, no. 3 (May 2014): 338–43. http://dx.doi.org/10.1134/s106377451403002x.

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8

Pashayan, S. A. "Biogeochemistry of honey chemical elements." IOP Conference Series: Earth and Environmental Science 315 (August 23, 2019): 052006. http://dx.doi.org/10.1088/1755-1315/315/5/052006.

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9

Reimert, R. "Elements of chemical process engineering." Journal of Hazardous Materials 54, no. 3 (July 1997): 259–60. http://dx.doi.org/10.1016/s0304-3894(97)82801-4.

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10

Ortega, R. "Chemical elements distribution in cells." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 231, no. 1-4 (April 2005): 218–23. http://dx.doi.org/10.1016/j.nimb.2005.01.060.

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11

Scott Fogler, H. "Elements of chemical reaction engineering." Chemical Engineering Science 42, no. 10 (1987): 2493. http://dx.doi.org/10.1016/0009-2509(87)80130-6.

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12

Szargut, Jan. "Chemical exergies of the elements." Applied Energy 32, no. 4 (January 1989): 269–86. http://dx.doi.org/10.1016/0306-2619(89)90016-0.

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13

Kragh, Helge. "Chemical elements, discoveries, and disputes." Metascience 23, no. 2 (October 19, 2013): 373–75. http://dx.doi.org/10.1007/s11016-013-9860-9.

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14

Williams, Robert J. P. "The chemical elements of life." Journal of the Chemical Society, Dalton Transactions, S (1991): 539. http://dx.doi.org/10.1039/dt9910000539.

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15

Kobayashi, Kensei, and Cyril Ponnamperuma. "Trace elements in chemical evolution." Origins of Life and Evolution of the Biosphere 16, no. 1 (March 1985): 57–67. http://dx.doi.org/10.1007/bf01808049.

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16

Hoffmann, H. J. "Boiling of the Chemical Elements." Materialwissenschaft und Werkstofftechnik 35, no. 9 (September 2004): 562–68. http://dx.doi.org/10.1002/mawe.200400779.

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17

Alvarez, Santiago, Joaquim Sales, and Miquel Seco. "On books and chemical elements." Foundations of Chemistry 10, no. 2 (June 20, 2008): 79–100. http://dx.doi.org/10.1007/s10698-008-9047-4.

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18

Frebel, Anna. "Reconstructing the Cosmic Evolution of the Chemical Elements." Daedalus 143, no. 4 (October 2014): 71–80. http://dx.doi.org/10.1162/daed_a_00307.

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The chemical elements are created in nuclear fusion processes in the hot and dense cores of stars. The energy generated through nucleosynthesis allows stars to shine for billions of years. When these stars explode as massive supernovae, the newly made elements are expelled, chemically enriching the surrounding regions. Subsequent generations of stars are formed from gas that is slightly more element-enriched than that from which previous stars formed. This chemical evolution can be traced back to its beginning soon after the Big Bang by studying the oldest and most metal-poor stars still observable in the Milky Way today. Through chemical analysis, they provide the only available tool for gaining information about the nature of the short-lived first stars and their supernova explosions more than thirteen billion years ago. These events set in motion the transformation of the pristine universe into a rich cosmos of chemically diverse planets, stars, and galaxies.
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19

JACOBY, MITCH. "HEAVY ELEMENTS International body dubs element 112 copernicium." Chemical & Engineering News 88, no. 9 (March 2010): 15. http://dx.doi.org/10.1021/cen-v088n009.p015a.

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20

Muller, Stefan C., Theo Plesser, and Benno Hess. "Structural Elements of Dynamical Chemical Patterns." Leonardo 22, no. 1 (1989): 3. http://dx.doi.org/10.2307/1575131.

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21

SEABORG, Glenn T. "Recent chemical research on transuranium elements." Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan 31, no. 7 (1989): 805–11. http://dx.doi.org/10.3327/jaesj.31.805.

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22

Hendry, Robin Findlay. "Elements, Compounds, and Other Chemical Kinds." Philosophy of Science 73, no. 5 (December 2006): 864–75. http://dx.doi.org/10.1086/518745.

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23

Larsen, Russell D. "Features associated with chemical elements (FACES)." Journal of Chemical Education 63, no. 6 (June 1986): 505. http://dx.doi.org/10.1021/ed063p505.

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24

Shilov, V. P., A. M. Fedoseev, and A. V. Gogolev. "Stability of tetraoxides of chemical elements." Russian Journal of General Chemistry 87, no. 10 (October 2017): 2265–68. http://dx.doi.org/10.1134/s1070363217100036.

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25

Solomon, Sally, and Donald J. Bates. "Collecting and using the chemical elements." Journal of Chemical Education 68, no. 12 (December 1991): 991. http://dx.doi.org/10.1021/ed068p991.

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26

Bensaude-Vincent, Bernadette. "Mendeleev's periodic system of chemical elements." British Journal for the History of Science 19, no. 1 (March 1986): 3–17. http://dx.doi.org/10.1017/s000708740002272x.

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Between 1869 and 1871, D. I. Mendeleev, a teacher at the University at St Petersburg published a textbook of general chemistry intended for his students. The title, Principles of Chemistry was typical for the time: it meant that chemistry was no longer an inquiry on the ultimate principles of matter but had become a science firmly established on a few principles derived from experiment.
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27

Williams, R. J. P. "Chemical selection of elements by cells." Coordination Chemistry Reviews 216-217 (June 2001): 583–95. http://dx.doi.org/10.1016/s0010-8545(00)00398-2.

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28

Nagame, Y., H. Haba, K. Tsukada, M. Asai, A. Toyoshima, S. Goto, K. Akiyama, et al. "Chemical studies of the heaviest elements." Nuclear Physics A 734 (April 2004): 124–35. http://dx.doi.org/10.1016/j.nuclphysa.2004.01.021.

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29

Franco-Mariscal, Antonio Joaquín. "Discovering the Chemical Elements in Food." Journal of Chemical Education 95, no. 3 (January 25, 2018): 403–9. http://dx.doi.org/10.1021/acs.jchemed.7b00218.

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30

Rivero, R., and M. Garfias. "Standard chemical exergy of elements updated." Energy 31, no. 15 (December 2006): 3310–26. http://dx.doi.org/10.1016/j.energy.2006.03.020.

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31

Nakamura, Eiichi, and Kentaro Sato. "Managing the scarcity of chemical elements." Nature Materials 10, no. 3 (February 21, 2011): 158–61. http://dx.doi.org/10.1038/nmat2969.

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32

Fray, D. J. "CHEMICAL ENGINEERING: Separating Rare Earth Elements." Science 289, no. 5488 (September 29, 2000): 2295–96. http://dx.doi.org/10.1126/science.289.5488.2295.

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33

Gäggeler, H. W. "Gas chemical properties of heaviest elements." Radiochimica Acta 99, no. 7-8 (July 2011): 503–13. http://dx.doi.org/10.1524/ract.2011.1857.

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34

Leal, J. P. "Chemical Elements: What's in a Name?" Science 334, no. 6053 (October 13, 2011): 176. http://dx.doi.org/10.1126/science.334.6053.176-b.

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35

Kobayashi, Kensei, and Cyril Ponnamperuma. "Trace elements in chemical evolution, I." Origins of Life and Evolution of the Biosphere 16, no. 1 (March 1985): 41–55. http://dx.doi.org/10.1007/bf01808048.

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36

Copeland, Robert A., and P. Ann Boriack-Sjodin. "The Elements of Translational Chemical Biology." Cell Chemical Biology 25, no. 2 (February 2018): 128–34. http://dx.doi.org/10.1016/j.chembiol.2017.11.003.

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37

Chu, San-Yan, Tieh-Sheng Lee, and Shyi-Long Lec. "Transition-Matrix Elements of Chemical Processes." Journal of the Chinese Chemical Society 39, no. 6 (December 1992): 471–78. http://dx.doi.org/10.1002/jccs.199200081.

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38

Gilead, Amihud. "Eka-elements as chemical pure possibilities." Foundations of Chemistry 18, no. 3 (February 10, 2016): 183–94. http://dx.doi.org/10.1007/s10698-016-9250-7.

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39

Lalvani, Haresh. "4D-cubic lattice of chemical elements." Foundations of Chemistry 22, no. 2 (December 14, 2019): 147–94. http://dx.doi.org/10.1007/s10698-019-09350-7.

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40

Leal, João P. "The Forgotten Names of Chemical Elements." Foundations of Science 19, no. 2 (February 23, 2013): 175–83. http://dx.doi.org/10.1007/s10699-013-9326-y.

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41

Piña, E., and S. M. T. De la Selva. "Conservation Equations for Chemical Elements in Fluids with Chemical Reactions." International Journal of Molecular Sciences 3, no. 2 (February 28, 2002): 76–86. http://dx.doi.org/10.3390/i3020076.

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42

Atkins, Peter. "Elements of Education." Chemistry International 41, no. 4 (October 1, 2019): 4–7. http://dx.doi.org/10.1515/ci-2019-0404.

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Abstract The periodic table was born in chemical education and thrives there still. Mendeleev was inspired to create his primitive but pregnant table in order to provide a framework for the textbook of chemistry that he was planning, and it has remained at the heart of chemical education ever since. It could be argued that the education of a chemist would be almost impossible without the table; at least, chemistry would remain a disorganized heap of disconnected facts. Thanks to Mendeleev and his successors, by virtue of the periodic table, chemical education became a rational discussion of the properties and transformations of matter. I suspect that the educational role of the periodic table is its most important role, for few research chemists begin their day (I suspect) by gazing at the table and hoping for inspiration, but just about every chemistry educator uses it as a pivot for their presentation.
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43

Singh, Rupinder, Ranvijay Kumar, A. Amendola, Ilenia Farina, Narinder Singh, and Fernando Fraternali. "Graphene Reinforced Composites as Sensing Elements." Key Engineering Materials 826 (October 2019): 33–44. http://dx.doi.org/10.4028/www.scientific.net/kem.826.33.

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The present study deals with the optimal design of a Graphene reinforced composite. The Graphene was prepared by chemical exfoliation process and was chemically blended with matrix material in acetone. Further chemically mixed solution was exposed to air for acetone vaporization. Next, this Graphene composite was extruded through twin screw extrusion (TSE) for preparation of feedstock filament with 1.75±0.05mm diameter via fused deposition modelling (FDM). The presented results suggest that statistically controlled Graphene reinforced functional prototypes can be usefully employed as sensors for bio-medical and engineering applications.
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44

Kim, Yeonhong, Yangwon Jeon, Minyoung Na, Soon-Jin Hwang, and Youngdae Yoon. "Recent Trends in Chemical Sensors for Detecting Toxic Materials." Sensors 24, no. 2 (January 10, 2024): 431. http://dx.doi.org/10.3390/s24020431.

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Industrial development has led to the widespread production of toxic materials, including carcinogenic, mutagenic, and toxic chemicals. Even with strict management and control measures, such materials still pose threats to human health. Therefore, convenient chemical sensors are required for toxic chemical monitoring, such as optical, electrochemical, nanomaterial-based, and biological-system-based sensors. Many existing and new chemical sensors have been developed, as well as new methods based on novel technologies for detecting toxic materials. The emergence of material sciences and advanced technologies for fabrication and signal-transducing processes has led to substantial improvements in the sensing elements for target recognition and signal-transducing elements for reporting interactions between targets and sensing elements. Many excellent reviews have effectively summarized the general principles and applications of different types of chemical sensors. Therefore, this review focuses on chemical sensor advancements in terms of the sensing and signal-transducing elements, as well as more recent achievements in chemical sensors for toxic material detection. We also discuss recent trends in biosensors for the detection of toxic materials.
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45

Rickaby, R. E. M. "Goldilocks and the three inorganic equilibria: how Earth’s chemistry and life coevolve to be nearly in tune." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 373, no. 2037 (March 13, 2015): 20140188. http://dx.doi.org/10.1098/rsta.2014.0188.

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Life and the chemical environment are united in an inescapable feedback cycle. The periodic table of the elements essential for life has transformed over Earth’s history, but, as today, evolved in tune with the elements available in abundance in the environment. The most revolutionary time in life’s history was the advent and proliferation of oxygenic photosynthesis which forced the environment towards a greater degree of oxidation. Consideration of three inorganic chemical equilibria throughout this gradual oxygenation prescribes a phased release of trace metals to the environment, which appear to have coevolved with employment of these new chemicals by life. Evolution towards complexity was chemically constrained, and changes in availability of notably Fe, Zn and Cu paced the systematic development of complex organisms. Evolving life repeatedly catalysed its own chemical challenges via the unwitting release of new and initially toxic chemicals. Ultimately, the harnessing of these allowed life to advance to greater complexity, though the mechanism responsible for translating novel chemistry to heritable use remains elusive. Whether a chemical acts as a poison or a nutrient lies both in the dose and in its environmental history.
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46

Mahmood, Fatimah Nazar, Eman Mohammed Abbo Hasan, and Enas Talal Mohamed. "The chemical elements of plants: A review." International Journal of Multidisciplinary Comprehensive Research 3, no. 4 (2024): 06–11. http://dx.doi.org/10.54660/ijmcr.2024.3.4.06-11.

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Plants contain many chemical elements, the accumulation of individual elements or groups of five to ten elements (such as CR, CO, MN, and Zn) in medicinal plants have been reviewed. The chemical features of medicinal plants act as an integral determinant of the characteristics of their species, pharmacological properties and enable their widespread use in medical practice. Where these elements are used in the synthesis of physiologically active substances and these elements are divided into large elements and small elements.
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47

N.N., Mamatkulov. "Chemical Treatment Of Water In Ammophos Production Plants." American Journal of Agriculture and Biomedical Engineering 03, no. 06 (June 18, 2021): 1–5. http://dx.doi.org/10.37547/tajabe/volume03issue06-01.

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This paper presents purification methods for the analysis of effluents from an ammophos production plant. Chemical analysis of the waters shows that phosphorus slags and phosphogypsum contain harmful elements such as strontium, arsenic, cadmium, titanium and manganese. Theoretical work on the control of ammophos max wastewater. Wastewater was found to contain Ca, Mg, F, S, P, N2 and trace elements.
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48

Nurlybaeva, Kundyz Amangeldievna, Aidar Muratovich Aitkulov, Gulnar Zhanatovna Mukasheva, and Gulmyra Mengalievna Tykezhanova. "Composition of chemical elements in the biosubstrate (hair) of children of the Karaganda region." Bulletin of the Karaganda University. “Biology, medicine, geography Series” 102, no. 2 (June 30, 2021): 51–56. http://dx.doi.org/10.31489/2021bmg2/51-56.

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In the article we studied chemical elements in the hair of children as a form of environmental monitoring of metals in a given area, since one of the objective indicators of the ecological and hygienic well-being of a territory is the status of trace elements as the most sensitive part of the population, especially children. Many foreign scientific studies have shown that a hair sample is a good indicator of a negative technogenic impact on humans, and it is known that the unfavorable state of children characterizes the ecogeochemical features of the area, so we took into account the accumulation of trace elements in the hair. The study showed an increase in lead and cadmium and a decrease in zinc, copper and chromium.
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49

Siromlya, Tat'yana Ivanovna, and Yuliya Vasil'yevna Zagurskaya. "CHEMICAL ELEMENT COMPOSITION OF HYPERICUM PERFORATUM PLANTS: ELEMENTS WHICH CONCEN-TRATIONS ARE NOT REGULATED." chemistry of plant raw material, no. 2 (October 28, 2018): 179–87. http://dx.doi.org/10.14258/jcprm.2019023965.

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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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50

Galyamova, G. K. "CHEMICAL ELEMENTS IN SOILS OF UST-KAMENOGORSK." South of Russia: ecology, development, no. 4 (November 16, 2014): 107. http://dx.doi.org/10.18470/1992-1098-2012-4-107-113.

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