Determination of trace elements in uranium oxide by Total Reflection X-ray Fluorescence spectrometry

Improved approach for the determination of low‐Z elements in uranium samples using a vacuum chamber TXRF spectrometer

“…TXRF has been used for the determination of trace levels of different elements in actinide oxides, for example, uranium and thorium oxides. [8,9] However, determinations of low atomic number elements at trace level by TXRF have several problems, which must be addressed before it can be applied for such determinations. [10][11][12] Attempts have been made in the past to determine trace amounts of low-Z elements in uranium matrix.…”

A technique for determination of metallic impurities in Al2O3 matrix by EDXRF

“…Besides these, the technique is being widely used for routine process control of metallic/non-metallic impurities in the production of steel, alloys, cement, oil [14] and clay like Kaoline [15]. In the field of characterization of nuclear fuel materials, XRF has been used since long for the determination of major matrices such as U and Th [16][17][18]. In the recent past, the utility of total reflection X-ray fluorescence technique for the determination of trace impurities in uranium solutions have been reported [17].…”

“…In the field of characterization of nuclear fuel materials, XRF has been used since long for the determination of major matrices such as U and Th [16][17][18]. In the recent past, the utility of total reflection X-ray fluorescence technique for the determination of trace impurities in uranium solutions have been reported [17]. Many literature reports are also available where alumina (in some cases, the ore bauxite) has been characterised for chemical quality control from trace metallic point of view by many analytical techniques.…”

Determination of Trace Lithium in Uranium Compounds by Adsorption on Activated Alumina Using a Micro-column Method

“…The nuclear reaction will be badly affected when the content of lithium exceeds a certain percentage, this makes the separation and determination of lithium in condensed uranium compounds an important issue. There are many reports on the determination of trace elements, such as Fe, Cu, Al, B, Be, Cd, Ca, Co, Mg, Mn, Mo, Pb, Si, Sn, V, Cr, Ni, Na, K, Ba, Zn, Rb, Zr, Cs, Hf, and REE (Yb, Ho, Dy, Gd, Eu, Sm and La), in uranium compounds, [2][3][4][5][6][7][8][9][10] but only a limited number of reports on lithium. 11,12 Fast, sensitive, reproducible, simple and accurate analytical methods are required for the determination of trace elements.…”

“…Many methods are now used for determination of trace elements in the nuclear fuels. 3 However, the direct determination of extremely low concentrations of the required trace elements by modern atomic spectrometry is often difficult. 13 There are many procedures for determination of lithium.…”