Chemical separation and ICP–AES determination of 22 metallic elements in U and Pu matrices using cyanex-923 extractant and studies on stripping of U and Pu

Development of Methodologies for the Chemical Quality Control of Zircon, A Precursor for Zirconium Production

“…D.C.Arc carrier distillation technique was used for atomic emission spectrometry, where based on the volatilization, the minor and trace analytes would sweep away to the excitation source D.C.Arc by leaving refractory elements like Zr, Si into the electrode in major amount physically. This physical way of separation helps in avoiding spectral interference of the major elements on analytes for their trace level determination.ICP-OES requires chemical separation of major matrices, which not only is time consuming but requires selective ligand system to serve the purpose, [42][43][44][45] while suitable carrier can cater the need by means of physical separation. [46][47][48][49] AgCl being extensively used as carrier for Zr matrix and hence was adopted in present investigation.…”

ICP-AES determination of trace metallic constituents in thorium matrix after preferential extraction of thorium using TBP, TOPO and DHOA: a comparative study

“…The major problem encountered in this case is the spectral interference of matrix element like U, Pu, Zr, Th etc., having line rich emission spectra [10][11][12][13][14][15]. Chemical separation of the major matrix followed by the determination of analytes in the raffinate is well accepted protocol in nuclear industry [16][17][18][19][20].…”

Quality control of (Th,Pu)O2 fuel pellet obtained by coated agglomerate pelletization

“…Nuclear materials like U, Th, Pu, Zr are prone to have spectral interference due to their multi electronic nature which may be detrimental during assay of analytes at trace level in such emission rich matrices [9][10][11][12][13][14][15]. In D.C. Arc analysis, such line rich matrix is separated physically by carrier distillation technique [16][17][18] where as in ICP-AES, chemical separation is achieved by the use of suitable organic phase [19][20][21][22][23][24][25]. Several analytical procedures were found to be reported in the literature of the determination of fuel elements like Pu, U, Th [26][27][28][29][30] while individual methods were employed for the determination of nonmetals in nuclear materials [31,32].…”