TY - JOUR
T1 - Determination of trace amounts of selenium and tellurium in nickel-based heat-resisting superalloys, steels and several metals by electrothermal atomic absorption spectrometry after reductive coprecipitation with palladium using ascorbic acid
AU - Ashino, Tetsuya
AU - Takada, Kunio
PY - 1995/8/30
Y1 - 1995/8/30
N2 - Trace amounts of selenium and tellurium in nickel-based heat-resisting superalloys and constituent metals were separated by a reductive coprecipitation technique with palladium using ascorbic acid, and determined by electrothermal atomic absorption spectrometry. Selenium and tellurium each added in 1 μg amounts to solutions of metals (Ni, Al, Cr, Co, Cu, Mn, Mo, V, Ti, Nb, Ta, W and Zr), were recovered by the proposed method. In all metals, both selenium and tellurium were quantitatively recovered in H2SO4, H2SO4-tartaric acid, H2SO4-oxalic acid or H2SO4-H3PO4 solution. In Ni, Al, Nb, Ta, W and Zr, they were also quantitatively recovered in HF-H2SO4 solution. This proposed method could be adapted to determine trace amounts of selenium and tellurium in several alloys (heat-resisting superalloys, stainless steels and high speed steels).
AB - Trace amounts of selenium and tellurium in nickel-based heat-resisting superalloys and constituent metals were separated by a reductive coprecipitation technique with palladium using ascorbic acid, and determined by electrothermal atomic absorption spectrometry. Selenium and tellurium each added in 1 μg amounts to solutions of metals (Ni, Al, Cr, Co, Cu, Mn, Mo, V, Ti, Nb, Ta, W and Zr), were recovered by the proposed method. In all metals, both selenium and tellurium were quantitatively recovered in H2SO4, H2SO4-tartaric acid, H2SO4-oxalic acid or H2SO4-H3PO4 solution. In Ni, Al, Nb, Ta, W and Zr, they were also quantitatively recovered in HF-H2SO4 solution. This proposed method could be adapted to determine trace amounts of selenium and tellurium in several alloys (heat-resisting superalloys, stainless steels and high speed steels).
KW - Atomic absorption spectrometry
KW - Nickel-based heat-resisting superalloy
KW - Palladium
KW - Selenium
KW - Steel
KW - Tellurium
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U2 - 10.1016/0003-2670(95)00215-L
DO - 10.1016/0003-2670(95)00215-L
M3 - Article
AN - SCOPUS:0029080344
VL - 312
SP - 157
EP - 163
JO - Analytica Chimica Acta
JF - Analytica Chimica Acta
SN - 0003-2670
IS - 2
ER -