Abstract

Numerous procedures <i>(1-4, 6, 9)</i> have been reported for the spectrochemical analysis of refractory materials, including niobium and tantalum, using buffer admixtures. Typical buffers, which have been used, include graphite, lithium carbonate, copper, silicon dioxide, zinc oxide, gallium sesquioxide, germanium dioxide, and lanthanum sesquioxide. In the development of dc arc procedures for the determination of low concentrations of niobium in tantalum and of tantalum in niobium, the study of the effect of various buffers on the precision and sensitivity of the methods was undertaken.

The Spectrochemical Analysis of Nickel Alloys*

Edwin K. Jaycox
J. Opt. Soc. Am. 37(3) 159-162 (1947)

Spectrochemical Analysis of Ceramics and Other Non-Metallic Materials*

Edwin K. Jaycox
J. Opt. Soc. Am. 37(3) 162-165 (1947)

Effect of postdeposition annealing on the structure, composition, and the mechanical and optical characteristics of niobium and tantalum oxide films

Eda Çetinörgü-Goldenberg, Jolanta-Ewa Klemberg-Sapieha, and Ludvik Martinu
Appl. Opt. 51(27) 6498-6507 (2012)

The Spectrochemical Analysis of Copper Base Alloys*

Edwin K. Jaycox
J. Opt. Soc. Am. 35(2) 175-179 (1945)

Quantitative determination of tantalum and niobium in tantalum–niobium ore using laser-induced breakdown spectroscopy

Li Liu and Zhongqi Hao
Appl. Opt. 58(2) 461-465 (2019)