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- [5] Cupferron separation for the determination of tantalum in high-purity iron and low alloy steel by ICP-AES FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1998, 362 (04): : 421 - 423
- [6] Cupferron separation for the determination of tantalum in high-purity iron and low alloy steel by ICP-AES Fresenius' Journal of Analytical Chemistry, 1998, 362 : 421 - 423