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Title: Analysis of the major constituents in Venezuelan laterites; a comparison of atomic absorption, x-ray fluorescence, and classical methods

Abstract

A comparison of an atomic absorption method and x-ray fluorescence procedure for the analysis of the major constituents in Venezuelan laterites from Serrania de los Guaicas and bauxites is presented. These methods are also compared to other classical methods. The accuracy and precision of both these techniques are within the requirements needed. The HF-H/sub 3/BO/sub 3/ decomposition step is a disadvantage in the atomic absorption method because of the uncertainty in a complete sample dissolution of bauxites, but it has been shown to be suitable for Venezuelan laterites. The x-ray fluorescence technique presented herein is also limited because of its sample preparation, i.e., the use of expensive Pt-Au crucibles and the large quantity of sample needed. 19 refs., 1 fig., 5 tabs.

Authors:
;
Publication Date:
Research Org.:
Instituto Venezolano de Investigaciones Cientificas (IVIC), Caracas, Venezuela
OSTI Identifier:
6856247
Alternate Identifier(s):
OSTI ID: 6856247
Resource Type:
Journal Article
Journal Name:
Appl. Spectrosc.; (United States)
Additional Journal Information:
Journal Volume: 34:1
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION SPECTROSCOPY; ALUMINIUM; X-RAY FLUORESCENCE ANALYSIS; BAUXITE; QUANTITATIVE CHEMICAL ANALYSIS; IRON; SILICON; SOILS; TITANIUM; ACCURACY; ALUMINIUM OXIDES; COMPARATIVE EVALUATIONS; EXPERIMENTAL DATA; IRON OXIDES; SAMPLE PREPARATION; SILICA; TITANIUM OXIDES; VENEZUELA; ALUMINIUM COMPOUNDS; ALUMINIUM ORES; CHALCOGENIDES; CHEMICAL ANALYSIS; DATA; DEVELOPING COUNTRIES; ELEMENTS; INFORMATION; IRON COMPOUNDS; LATIN AMERICA; METALS; MINERALS; NONDESTRUCTIVE ANALYSIS; NUMERICAL DATA; ORES; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; SEMIMETALS; SILICON COMPOUNDS; SILICON OXIDES; SOUTH AMERICA; SPECTROSCOPY; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; X-RAY EMISSION ANALYSIS 400101* -- Activation, Nuclear Reaction, Radiometric & Radiochemical Procedures; 400102 -- Chemical & Spectral Procedures

Citation Formats

LaBrecque, J.J., and Schorin, H. Analysis of the major constituents in Venezuelan laterites; a comparison of atomic absorption, x-ray fluorescence, and classical methods. United States: N. p., 1980. Web. doi:10.1366/0003702804730970.
LaBrecque, J.J., & Schorin, H. Analysis of the major constituents in Venezuelan laterites; a comparison of atomic absorption, x-ray fluorescence, and classical methods. United States. doi:10.1366/0003702804730970.
LaBrecque, J.J., and Schorin, H. Tue . "Analysis of the major constituents in Venezuelan laterites; a comparison of atomic absorption, x-ray fluorescence, and classical methods". United States. doi:10.1366/0003702804730970.
@article{osti_6856247,
title = {Analysis of the major constituents in Venezuelan laterites; a comparison of atomic absorption, x-ray fluorescence, and classical methods},
author = {LaBrecque, J.J. and Schorin, H.},
abstractNote = {A comparison of an atomic absorption method and x-ray fluorescence procedure for the analysis of the major constituents in Venezuelan laterites from Serrania de los Guaicas and bauxites is presented. These methods are also compared to other classical methods. The accuracy and precision of both these techniques are within the requirements needed. The HF-H/sub 3/BO/sub 3/ decomposition step is a disadvantage in the atomic absorption method because of the uncertainty in a complete sample dissolution of bauxites, but it has been shown to be suitable for Venezuelan laterites. The x-ray fluorescence technique presented herein is also limited because of its sample preparation, i.e., the use of expensive Pt-Au crucibles and the large quantity of sample needed. 19 refs., 1 fig., 5 tabs.},
doi = {10.1366/0003702804730970},
journal = {Appl. Spectrosc.; (United States)},
number = ,
volume = 34:1,
place = {United States},
year = {1980},
month = {1}
}