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Quantification of trace elemental concentrations in ten soil samples from coal mining region by ED-XRF-technique

100%
Jyothsna S., Manjula G., Sammaiah D.
World News of Natural Sciences
|
2022
|
vol. 41
1-12
EN
In recent times, trace elemental analysis of various samples have an important role in human life. Ramagundam, one of the oldest coal mining areas in Telangana, India was explored for the soil trace elemental analysis. EDXRF technique was used to analyze the soil samples and quantification was also performed using the nEXT software. Nine soil samples were collected from coal mining area from Ramagundam and one soil sample was collected from agriculture area, which is considered as a control sample. Seven elements V, Cr, Mn, Fe, Ni, Cu, and Zn were found and the concentrations of Fe, Mn, Ni, V, and Cr were observed at the extreme level when compared with other elements. The elements V, Cr, and Ni are known to be toxic even at lower concentrations. These results were compared with NIST 2587 and control soil and found a wide variation in their elemental composition. The elements i.e., Zn, Fe, Cu, and Mn have a major role in human physiology, plant growth, and development. Since they are found to contain a substantial amount of micro-nutrients in these samples, it would lead to the betterment of the socio-economic life of the people living in the area of mining.
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Analytical performance of a fast multi-element method for titanium and trace elements determination in cosmetics and pharmaceuticals by ICP-AES

100%
Zachariadis G., Sahanidou E.
Open Chemistry
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2011
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vol. 9
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issue 2
213-217
EN
A multi-element analytical method based on inductively coupled plasma atomic emission spectrometry (ICP-AES) was developed for trace elements in pharmaceutical tablets and cosmetics. Titanium was also included in the analytes since it is widely used in pharmaceuticals. Critical ICP conditions, like RF incident power, argon gas flow rate and nebulizer sample uptake flow rate were optimized. The most sensitive spectral line of each analyte was selected as optimum for further study. Detection limits in the low µg g−1 range were obtained. Prior to chemical analysis, the samples were decomposed by acid digestion, using various mixtures of HCl, HNO3 and HF. Yttrium was used as a suitable internal standard in order to correct for possible matrix effects. The method was applied to the analysis of six different pharmaceutical products (anti-biotic, anti-inflammatory, anti-hypertensive) in the form of tablets with film coating and also three cosmetic products like hair and face masks.
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Infrared Studies and Mineral Element Analysis of the leaf of Vernonia amygdalina

86%
Duru I. A., Duru C. E.
World News of Natural Sciences
|
2017
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vol. 13
1-9
EN
Used in traditional medicine, infrared characterization of column eluates and elemental analysis of V. amygdalina was carried out to establish preliminary views of the chemical and mineral element composition of the leaf of this plant. In the five pure eluates obtained, we found that they contained saturated aliphatic esters, nitro-groups conjugated with benzene ring, secondary amines/nitrogen heterocycles, 1,3-disubstituted benzene and oxazine/oxazoline fragments, respectively. Moreover, we established that potassium, magnesium and sodium were the major minerals in the leaf, while copper, zinc, iron, nickel, manganese and chromium occurred in trace amounts. Research attention should therefore be focused on this plant for the full exploration and exploitation of its obvious antibiotic and mineral values.
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