Matrix Effect Studies in the GFAAS Determination of Magnesium in Proposed Fuel for Indian Advance Heavy Water Reactor (AHWR)

Abstract

Studies on the atomization of Mg in U+Th matrix were carried out and the effect of matrix composition on analyte absorbance was investigated using graphite furnace atomic absorption spectrometry (GFAAS). These studies showed that the absorbance signal for Mg in mixed matrices is reduced in comparison to matrixfree solutions. The variation in the GFAAS absorbance signal of Mg as a function of increase in matrix concentration and matrix composition was studied and found to affect Mg absorbance. Based on these investigations, analytical methods were developed for the direct determination of Mg in aqueous and in the presence of 0.1 mg/mL (3% U+Th) solution ranging from 0.004-0.1 and 0.004-0.08 µg/mL, respectively. Buildup of the matrix within the atomizer over its repetitive use did not cause any significant changes in the absorbance signals up to 100 atomization cycles. In the presence of 20 common metallic elements (Ag,

Analysis of Trace Elements in Nasolacrimal Duct Tissue Using Total Reflection X-ray Fluorescence: A Pilot Study

“…Yes (Bart, 2005) Yes (Gupta, 2011) No (Iti, 2020) Yes (Agatemor et Beauchemin, 2011 Yes (Shubina et Kolesov, 1997) Yes (Rousseau, 2001)…”

Analysis of Trace Elements in Nasolacrimal Duct Tissue Using Total Reflection X-ray Fluorescence: A Pilot Study

“…Yes (Bart, 2005) Yes (Gupta, 2011) No (Iti, 2020) Yes (Agatemor et Beauchemin, 2011 Yes (Shubina et Kolesov, 1997) Yes (Rousseau, 2001)…”

Influence of Uranium and Plutonium on the Atomization of Lanthanides (Eu, Dy) Using GFAAS: Correlation of Data by Reaction Mechanism

“…Atomic absorption spectrometry (AAS) is very widely used in analytical work and has shown its versatile applicability in plutonium, uranium and thorium matrices (9)(10)(11). However, it is still little used for the determination of elements such as lanthanides, scandium, yttrium, and boron.…”