Assessment and Estimation of Trace Elements in Azadiracta indica from Mining Area by EDXRF Technique

2021 ◽  
pp. 77-83
Author(s):  
S. Jyothsna ◽  
G. Manjula ◽  
D. Sammaiah
Keyword(s):  
Trace Elements ◽  
Mining Area ◽  
Edxrf Technique

ANALYSIS OF COPPER COINS BY EDXRF TECHNIQUE

2004 ◽  
Vol 14 (03n04) ◽  
pp. 133-139 ◽  
Author(s):  
T. R. RAUTRAY ◽  
V. VIJAYAN ◽  
P. K. NAYAK ◽  
S. JENA
Keyword(s):  
Trace Elements ◽  
Major And Trace Elements ◽  
Spectroscopic Technique ◽  
Energy Dispersive ◽  
Historical Events ◽  
Trade Routes ◽  
X Ray ◽  
Edxrf Technique ◽  
Non Destructive ◽  
Archaeological Objects

Coins are important archaeological objects that can provide useful information regarding preparation methodology and provenance. Their classification plays a fundamental role in dating historical events, in constructing trade routes and in establishing the welfare of population. Several Indian copper coins of different periods have been studied using Energy Dispersive X-ray Fluorescence (EDXRF) spectroscopic technique. The method is rapid, efficient, multi elemental and non-destructive in nature. Concentrations of the major and trace elements like Ca , Ti , V , Cr , Mn , Fe , Co , Ni , Cu , Zn , As and Pb have been estimated in these copper coins. In the present investigation, an attempt has been made to characterize some Indian copper coins of different periods using EDXRF technique.

Study on Trace Elements Concentration in Medicinal Plants Using EDXRF Technique

2020 ◽  
Vol 198 (1) ◽  
pp. 293-302 ◽  
Author(s):  
Chandrashekara Kulal ◽  
Ranjib Kumar Padhi ◽  
Kanagasabapathy Venkatraj ◽  
Kamala Kantha Satpathy ◽  
Somashekarappa Hiriyuru Mallaya
Keyword(s):  
Trace Elements ◽  
Medicinal Plants ◽  
Edxrf Technique

Immobile trace elements and Archean volcanic stratigraphy in the Timmins mining area, Ontario

1979 ◽  
Vol 16 (2) ◽  
pp. 305-311 ◽  
Author(s):  
J. F. Davies ◽  
R. W. E. Grant ◽  
R. E. S. Whitehead
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
No Value ◽  
Volcanic Rocks ◽  
Mining Area ◽  
Stratigraphic Correlation ◽  
Trace Element Data ◽  
Volcanic Stratigraphy ◽  
Lithostratigraphic Units ◽  
Hydrolysis Of

Carbonate alteration and hydrolysis of mafic volcanic rocks in the Timmins area have been accompanied by mobilization and redistribution of alkalies, CaO, MgO, and FeO. These major oxides are of dubious value in classifying the volcanic rocks, and are of no value in identifying and correlating lithostratigraphic units. The trace elements Y, Zr, TiO2, and Cr, whose fractionation tendencies parallel those of the alkalies, FeO and MgO, are relatively immobile and display characteristic patterns within different volcanic units. The trace-element patterns are highly diagnostic, and their distribution corresponds to the distribution of lithostratigraphic units. Immobile trace-element data represent a potentially valuable tool in stratigraphic correlation of Archean volcanic rocks, whether altered or unaltered.

Hydrochemical Characteristics of the Mongolian Plateau and its Pollution Levels

Inner Asia ◽  
2014 ◽  
Vol 16 (2) ◽  
pp. 427-441 ◽  
Author(s):  
Osamu Nagafuchi ◽  
Koyomi Nakazawa ◽  
Kanji Okano ◽  
Ken’ichi Osaka ◽  
Yuki Nishida ◽  
...  
Keyword(s):  
Trace Elements ◽  
Drinking Water ◽  
Water Samples ◽  
Salt Water ◽  
Mining Area ◽  
Mining Activity ◽  
World Health ◽  
Anthropogenic Activity ◽  
Small Scale ◽  
Mongolian Plateau

Increasing large-scale and rampant small-scale mining activity in Mongolia is raising fears about the possibility of regional environmental pollution. To characterise the level of groundwater pollution related to large- and small-scale underground resource development in the Mongolian plateau, we analysed 10 groundwater and 3 surface water samples collected from three areas: the Oyu Tolgoi mining area (n = 3), the Tavan Tolgoi mining area (n = 9) and an abandoned small-scale gold-mining site in the suburban of Ulaanbaatar (n = 1). The samples were collected between 29 August and 5 September 2012. Measurement parameters included pH; electrical conductivity; dissolved organic carbon; dissolved nitrogen; and the concentrations of major ions and trace elements. Principal component analyses, Piper diagrams and enrichment factor analyses were applied to a set of hydrochemical data. Water samples were analysed to identify components that may adversely affect the regional environment and human health. Analytical measurements showed that the studied sites were highly affected by fossil salt water and trace elements derived from anthropogenic activity. We found that groundwater samples from the Oyu Tolgoi area were more polluted than those from the Tavan Tolgoi area. Because wells in the pasture area adjacent to the mining sites supply drinking water for livestock and nomads, it is especially important to monitor these wells for NO3−, As and Se, for which the World Health Organisation has established drinking-water guidelines. The concentrations of NO3−, As and Se in wells may be used as indicators to evaluate the human and livestock health risks related to mining activity in this area.

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