Determination of Alumina Oxide in Bauxites by X-ray Fluorescence Analysis

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Dragica Lazic
Dragica Lazic
σ
Dr. Dragana Keselj
Dr. Dragana Keselj
ρ
Jelena Penavin-Skundric
Jelena Penavin-Skundric
Ѡ
Slavica Sladojevic
Slavica Sladojevic
¥
Ljubica Vasiljevic
Ljubica Vasiljevic
α University of East Sarajevo University of East Sarajevo

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Determination of Alumina Oxide in Bauxites by X-ray Fluorescence Analysis

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Abstract

This study relates to determination of the content of aluminium oxide (%Al2O3) in different types of bauxite by the X-ray fluorescence method (XRF). The samples were prepared in the form of beads by the borax method from bauxite, which had been previously annealed. Standard reference samples of bauxite were used to produce a calibration curve and the calibration curve obtained was with very good coefficient of determination r = 0.9992 and standard deviation S = 0.091. After statistical verification of the method (F-test, reference method and standard sample of bauxite), it was concluded that the method was precise and correct and that there were no systemic errors. In addition to this, by the XRF analysis of different types of bauxite the average value of residuals between percent of Al2O3 determined by the standard method of SRPS B.G8.512 and XRF method was 0.254 with the deviation of 0.191.

Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Dragica Lazic. 2012. \u201cDetermination of Alumina Oxide in Bauxites by X-ray Fluorescence Analysis\u201d. Global Journal of Science Frontier Research - B: Chemistry GJSFR-B Volume 12 (GJSFR Volume 12 Issue B3): .

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Journal Specifications

Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

Version of record

v1.2

Issue date

July 21, 2012

Language
en
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This study relates to determination of the content of aluminium oxide (%Al2O3) in different types of bauxite by the X-ray fluorescence method (XRF). The samples were prepared in the form of beads by the borax method from bauxite, which had been previously annealed. Standard reference samples of bauxite were used to produce a calibration curve and the calibration curve obtained was with very good coefficient of determination r = 0.9992 and standard deviation S = 0.091. After statistical verification of the method (F-test, reference method and standard sample of bauxite), it was concluded that the method was precise and correct and that there were no systemic errors. In addition to this, by the XRF analysis of different types of bauxite the average value of residuals between percent of Al2O3 determined by the standard method of SRPS B.G8.512 and XRF method was 0.254 with the deviation of 0.191.

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Determination of Alumina Oxide in Bauxites by X-ray Fluorescence Analysis

Dr. Dragana Keselj
Dr. Dragana Keselj
Dragica Lazic
Dragica Lazic University of East Sarajevo
Jelena Penavin-Skundric
Jelena Penavin-Skundric
Slavica Sladojevic
Slavica Sladojevic
Ljubica Vasiljevic
Ljubica Vasiljevic

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