TY - JOUR
T1 - Cupferron separation for the determination of tantalum in high-purity iron and low alloy steel by ICP-AES
AU - Danzaki, Yûetsu
AU - Takada, Kunio
AU - Wagatsuma, Kazuaki
PY - 1998
Y1 - 1998
N2 - For the determination of Ta (> 0.0005 mass %) in iron and low-alloy steel spectrophotometric methods, e.g., after the extraction of the Ta-Victoria Blue B complex by benzene, are generally used. To avoid the application of poisonous benzene as extracting solvent and to improve the detection power, an ICP-AES method after the separation of Ta by coprecipitation with cupferron has been developed. The detection limit (3σ) of 0.6 μgTa/g is lower in comparison with spectrophotometric methods. Therefore, the method also allows the determination of Ta-concentrations in the μg/g-range in high-purity iron.
AB - For the determination of Ta (> 0.0005 mass %) in iron and low-alloy steel spectrophotometric methods, e.g., after the extraction of the Ta-Victoria Blue B complex by benzene, are generally used. To avoid the application of poisonous benzene as extracting solvent and to improve the detection power, an ICP-AES method after the separation of Ta by coprecipitation with cupferron has been developed. The detection limit (3σ) of 0.6 μgTa/g is lower in comparison with spectrophotometric methods. Therefore, the method also allows the determination of Ta-concentrations in the μg/g-range in high-purity iron.
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U2 - 10.1007/s002160051098
DO - 10.1007/s002160051098
M3 - Article
AN - SCOPUS:4243184153
SN - 1618-2642
VL - 362
SP - 421
EP - 423
JO - Fresenius Zeitschrift fur Analytische Chemie
JF - Fresenius Zeitschrift fur Analytische Chemie
IS - 4
ER -