Research output: Contribution to journal › Article › peer-review
Multielemental Analysis of Tellurium Dioxide with Sample Matrix Preseparation by Reactive Distillation. / Tsygankova, A. R.; Guselnikova, T. Ya; Oshustanova, V. A.
In: Journal of Analytical Chemistry, Vol. 80, No. 8, 2025, p. 1360-1367.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Multielemental Analysis of Tellurium Dioxide with Sample Matrix Preseparation by Reactive Distillation
AU - Tsygankova, A. R.
AU - Guselnikova, T. Ya
AU - Oshustanova, V. A.
N1 - This work was supported by the Ministry of Science and Higher Education of the Russian Federation, project no. 125021302133–1.
PY - 2025
Y1 - 2025
N2 - Abstract: A method is proposed for matrix separation from a sample of tellurium dioxide TeO2 as tellurium tetrachloride based on reactive distillation in a flow reactor at 240°C using gaseous chlorine as a chlorination agent. The behavior of 59 impurities is studied, and it was found that As, Au, B, Bi, Cu, Ga, In, Mo, Nb, Pb, Re, Ru, Sb, Se, Sn, Ta, Ti, V, W, and Zn were lost completely or partially, whereas Ag, Al, Ba, Be, Ca, Cd, Ce, Co, Cr, Dy, Er, Eu, Gd, Ir, Hf, Ho, K, La, Li, Lu, Mg, Mn, Na, Nd, Ni, P, Pd, Pr, Pt, Rb, Rh, Sc, Sm, Sr, Tb, Tm, Y, Yb, and Zr were retained in the concentrate by more than 75%. The impurity content of the concentrate was determined by inductively coupled plasma atomic emission spectrometry. Accuracy was confirmed by the spike experiment and by comparison with the results of analyses without preconcentration. The limits of detection are in the range from 2 × 10–8 to 8 × 10–6 wt %, intralaboratory precision is better than 31%.
AB - Abstract: A method is proposed for matrix separation from a sample of tellurium dioxide TeO2 as tellurium tetrachloride based on reactive distillation in a flow reactor at 240°C using gaseous chlorine as a chlorination agent. The behavior of 59 impurities is studied, and it was found that As, Au, B, Bi, Cu, Ga, In, Mo, Nb, Pb, Re, Ru, Sb, Se, Sn, Ta, Ti, V, W, and Zn were lost completely or partially, whereas Ag, Al, Ba, Be, Ca, Cd, Ce, Co, Cr, Dy, Er, Eu, Gd, Ir, Hf, Ho, K, La, Li, Lu, Mg, Mn, Na, Nd, Ni, P, Pd, Pr, Pt, Rb, Rh, Sc, Sm, Sr, Tb, Tm, Y, Yb, and Zr were retained in the concentrate by more than 75%. The impurity content of the concentrate was determined by inductively coupled plasma atomic emission spectrometry. Accuracy was confirmed by the spike experiment and by comparison with the results of analyses without preconcentration. The limits of detection are in the range from 2 × 10–8 to 8 × 10–6 wt %, intralaboratory precision is better than 31%.
KW - ICP AES
KW - impurity preconcentration
KW - limits of detection
KW - reactive distillation in a flow reactor
KW - tellurium dioxide
UR - https://www.mendeley.com/catalogue/3baedaa5-584f-3fd4-bbb5-b273595e0683/
UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105013580753&origin=inward
U2 - 10.1134/S1061934825700637
DO - 10.1134/S1061934825700637
M3 - Article
VL - 80
SP - 1360
EP - 1367
JO - Journal of Analytical Chemistry
JF - Journal of Analytical Chemistry
SN - 1061-9348
IS - 8
ER -
ID: 68841009