Reconstruction of the Cadmium Contamination History of a River Floodplain from Maoniuping Mining Area (China) by Gamma Ray Spectrometry and Inductively Coupled Plasma Mass Spectrometry

The emplacement age of the Muntele Mare Variscan granite (Apuseni Mountains, Romania)Like the Alps and Western Carpathians, the Apuseni Mountains represent a fragment of the Variscan orogen involved in the Alpine crustal shortenings. Thus the more extensive Alpine tectonic unit in the Apuseni Mountains, the Bihor Autochthonous Unit is overlain by several nappe systems. During the Variscan orogeny, the Bihor Unit was a part of the Someş terrane involved as the upper plate in subduction, continental collision and finally in the orogen collapse and exhumation. The Variscan thermotectonic events were marked in the future Bihor Unit by the large Muntele Mare granitoid intrusion, an S-type anatectic body. Zircon U-Pb laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) dating yielded a weighted mean age of 290.9 ± 3.0 Ma and a concordia age of 291.1 ± 1.1 Ma. U-Pb isotope dilution zircon analyses yielded a lower intercept crystallization age of 296.6 + 5.7/-6.2 Ma. These two ages coincide in the error limits. Thus, the Muntele Mare granitoid pluton is a sign of the last stage in the Variscan history of the Apuseni Mountains. Many zircon grains show inheritance and/or Pb loss, typical for anatectic granitoid, overprinted by later thermotectonic events.

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Presence of radionuclides and toxic elements in feedstuffs and food of animal origin

Veterinarski glasnik ◽

10.2298/vetgl190220008m ◽

2019 ◽

Vol 73 (1) ◽

pp. 30-39 ◽

Cited By ~ 1

Author(s):

Branislava Mitrovic ◽

Borjana Vranjes ◽

Olga Kostic ◽

Veljko Perovic ◽

Miroslava Mitrovic ◽

...

Keyword(s):

Inductively Coupled Plasma ◽

Toxic Elements ◽

Gamma Ray ◽

Animal Feed ◽

Average Concentration ◽

Animal Origin ◽

Gamma Ray Spectrometry ◽

Plasma Spectrometry ◽

Inductively Coupled ◽

Food Of Animal Origin

Introduction. The aim of this study was to determine the content of radionuclides and toxic elements in samples feedstuffs and food of animal origin collected between 2007- 2017 from two suburban areas of Belgrade, the municipalities of Palilula and Surcin, both areas with intensive agricultural production. Materials and Methods. Radionuclides (40K and 137Cs) and toxic elements (As, Cd, Cu, Ni, Pb and Zn) were determined in samples of corn, hay, meat, milk and eggs, by gamma ray spectrometry and inductively coupled plasma spectrometry (ICP-OES, Spectro Genesis). Results and Conclusions. The obtained results showed that natural 40K was present in all investigated samples. The average activity concentration of 40K was 94 Bq/kg in corn, 117 Bq/kg, 108 Bq/kg and 95 Bq/kg in beef, pork and chicken meat, respectively, as well as 61 Bq/kg in cow?s milk and 48 Bq/kg in eggs. Anthropogenic radionuclide 137Cs was not detected. The trend for toxic element levels according to the average concentrations found in the studied feed samples (corn and hay) was as follows: Zn>Cu>Pb>As>Ni>Cd. Arsenic was detected in animal feed in both Belgrade municipalities, with the average concentration being 1.08 mg/kg (0.5-1.37 mg/kg), and in corn, the As content was higher than in hay samples. In food of animal origin, only Zn and Cu were detected. It is concluded that the presence of radionuclides and toxic elements in feedstuffs and foods of animal origin does not pose a health risk for either humans or animals.

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Mineralogical characteristics and sources of alkali metals in the No. 6 coal seam from the Fukang mining area of the Zhunnan coalfield, Xinjiang province, Northwest China

Energy Exploration & Exploitation ◽

10.1177/0144598719832716 ◽

2019 ◽

Vol 37 (3) ◽

pp. 1162-1181 ◽

Cited By ~ 1

Author(s):

Yun Xu ◽

Handong Liang ◽

Ning Zhang

Keyword(s):

Coal Seam ◽

Inductively Coupled Plasma ◽

Alkali Metals ◽

Northwest China ◽

Mining Area ◽

Major Elements ◽

Middle Part ◽

X Ray ◽

Inductively Coupled ◽

Plasma Mass Spectrometry

Minerals in coal are of great significance in determining coal properties, washing, combustion, gasification, and liquefaction. The content of alkali metals in coal is an important factor determining corrosion and/or erosion in combustion boilers. Eleven coal samples were taken from the No. 6 coal seam of the Fukang mining area, Zhunnan coalfield, Xinjiang province, China. X-ray fluorescence, inductively coupled plasma-mass spectrometry, low-temperature ashing-X-ray diffraction, and electron probe microanalyzer were used for analyzing the minerals, major elements, and trace elements of the coal. The results indicated that the minerals mainly consist of dawsonite, dolomite, albite, calcite, kaolinite, quartz. The average content of Na2O in the ash of the No. 6 coal seam samples was 10.91%. Na mainly occurs in the form of organic compounds in the No. 6 coal seam, then in the form of inorganic minerals, such as dawsonite and albite. Na in surface and underlying strata was brought into the coal by water and combined with organic matter, resulting in relatively high Na contents in the upper and bottom parts of the coal seam and relatively low Na contents in the middle part.

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Experimental assessment of the effect of temperature and salinity on elemental composition of otoliths using solution-based ICPMS

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f95-137 ◽

1995 ◽

Vol 52 (7) ◽

pp. 1421-1430 ◽

Cited By ~ 87

Author(s):

Anthony J. Fowler ◽

Steven E. Campana ◽

Simon R. Thorrold ◽

Cynthia M. Jones

Keyword(s):

Elemental Composition ◽

Inductively Coupled Plasma ◽

Somatic Growth ◽

Early Life History ◽

Effect Of Temperature ◽

Micropogonias Undulatus ◽

Inductively Coupled ◽

Plasma Mass Spectrometry ◽

History Of ◽

Salinity Difference

Retrospective determination of the early life history of fish using the microelemental analysis of their otoliths is dependent upon understanding the factors that affect this elemental composition. Here, juvenile Atlantic croaker (Micropogonias undulatus) were reared under different treatments of temperature and salinity to determine their impacts on elemental inclusion rates in otoliths. Solution-based inductively coupled plasma mass spectrometry (ICPMS) was used to measure 21 isotopes in each otolith: isotopic concentrations ranged over seven orders of magnitude, and differed significantly amongst the temperature–salinity regimes. Univariate analyses identified 13 isotopes that contributed to these multivariate differences; the influence of temperature was stronger than that of salinity. Within each treatment there was a significant relationship between otolith microchemistry and otolith size. To some extent this confounded the interpretation of the between-treatment effect of temperature. In contrast, both the otolith and somatic growth rates were similar between the two salinity treatments, indicating that differences in elemental fingerprints were unambiguously related to the salinity difference, probably a response to the elemental concentrations in the tank water. Overall the study highlighted the current poor understanding of the mechanism of contamination of otoliths by trace elements and their incorporation into the otolith microstructure.

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A Study of the Composition and Dissolution of Jianshui Purple Pottery in Yunnan, China

Crystals ◽

10.3390/cryst11091034 ◽

2021 ◽

Vol 11 (9) ◽

pp. 1034

Author(s):

Chang Liu ◽

Heng Xie ◽

Lei Nie ◽

Hong Wang ◽

Yuanyuan He

Keyword(s):

Inductively Coupled Plasma ◽

Theoretical Basis ◽

Pottery Production ◽

X Ray ◽

Inductively Coupled ◽

Dissolution Tests ◽

Before And After ◽

Plasma Mass Spectrometry ◽

History Of ◽

Composition Changes

Pottery is a gem in the history of human civilization and a crystallization of human wisdom. Yunnan Jianshui purple pottery is one of the four famous types of pottery in China, with a long history and superb craftsmanship. Used as tableware, research on the composition and element dissolution of pottery is extremely significant for production and health. This paper takes Jianshui purple pottery as its research object, samples its raw ores and finished products, and conducts X-ray fluorescence, scanning electron microscopy, inductively coupled plasma mass spectrometry experiments, and dissolution tests. The chemical composition, microstructure, and trace element concentrations of pottery before and after firing were measured. Results show that the dissolution of purple pottery under various use scenarios is low and meets health requirements. Combined with the characteristics of purple pottery, the composition changes and the mechanism of change before and after firing are discussed, which can be used as the theoretical basis for improving pottery production in the future.

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Aquamarine from Thach Khoan Mining Area in Phu Tho Province, Vietnam

VNU Journal of Science Earth and Environmental Sciences ◽

10.25073/2588-1094/vnuees.4090 ◽

2017 ◽

Vol 33 (2) ◽

Author(s):

Dương Lý Thùy

Keyword(s):

Inductively Coupled Plasma ◽

Mining Area ◽

Global Market ◽

Type I ◽

Electron Probe Micro Analysis ◽

Inductively Coupled ◽

Icp Ms ◽

Plasma Mass Spectrometry ◽

Micro Analysis ◽

Raman And Ir Spectroscopy

Abstract: Aquamarine is a kind of gemstone having attractive color, valuable and being a potential material in gemological industry. In Vietnam, Thach Khoan area has become a noticeable location to explore aquamarine. However, the researches of aquamarine are still limited. Therefore, this study was conducted to determine the characteristics of aquamarine. Eight aquamarine samples from granitic pegmatites in Thach Khoan commune, Thanh Son District, Phu Tho Province were investigated by classical gemological methods, Electron Probe Micro-analysis (EMPA) and Laser Ablation – Inductively Coupled Plasma – Mass Spectrometry (LA-ICP-MS) methods, Raman and Fourier transform infrared (FTIR) spectroscopy. Results showed that aquamarine presents a low concentration of alkali and high amount of iron. Raman and IR spectroscopy indicate the vibrations of specific bonds including Si-O, Al-O, Be-O, the presence of CO2 and type I H2O in structural channels. By dint of that, we are going to study the potential treatment methods of aquamarine in Vietnam in the following study to enhance its quality as well as value in the global market.

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Trace elements determined along single strands of hair by inductively coupled plasma mass spectrometry

Clinical Chemistry ◽

10.1093/clinchem/39.8.1650 ◽

1993 ◽

Vol 39 (8) ◽

pp. 1650-1655 ◽

Cited By ~ 14

Author(s):

J Yoshinaga ◽

Y Shibata ◽

M Morita

Keyword(s):

Mass Spectrometry ◽

Trace Elements ◽

Flow Injection ◽

Inductively Coupled Plasma ◽

Small Volume ◽

Distribution Profile ◽

Inductively Coupled ◽

Limit Of Determination ◽

Plasma Mass Spectrometry ◽

History Of

Abstract Flow injection-inductively coupled plasma mass spectrometry has been evaluated for determining the distribution profile of trace elements along a single strand of hair. Hair was cut into several mm long sections from follicle to the distal end. Each section was solubilized in a capped 1.5-mL polypropylene tube with small volume of nitric acid (typically 50 microL) at room temperature. After dilution an aliquot (50 microL) was introduced into the mass spectrometer by flow injection. The limit of determination was typically 5-50 pg with 5-10% precision (CV), depending on the element examined; this corresponds to sub-microgram/g concentrations of these elements in hair segments. Recent exposure and intake history of individuals to thallium or mercury could be reconstructed by this system.

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