Abstract

Large graphite beakers have been developed for analysis using the double-arc technique. A two-chamber system prohibits the spraying of sample powder. The new beaker can be filled with more than 10 g of sample. The larger sample gives the advantage of better detection limits (to parts per billion). A new excitation and heating source, called "mixed source," consisting of an exciting-spark or ac source and a separately controlled heating dc arc, is described.

Spectral Radiance of a Low Current Graphite Arc

Albert T. Hattenburg
Appl. Opt. 6(1) 95-100 (1967)

A Condensed Arc Source Unit for Spectrochemical Analysis

D. A. Sinclair
J. Opt. Soc. Am. 38(6) 547-553 (1948)

Lyapunov exponent analysis for the evaluation of hybrid laser double-arc welding process stability

Xiaoyan Gu, Huan Li, and Jinshan Luo
Appl. Opt. 57(30) 9053-9061 (2018)

Air-Cooled Electrodes for the Spectrochemical Analysis of Powders*†‡

B. J. Stallwood
J. Opt. Soc. Am. 44(2) 171-176 (1954)

Characteristics of Pulsed Arcs in Spectrochemical Analysis. Part I: Zinc Alloys

D. A. Sinclair
J. Opt. Soc. Am. 39(11) 958-966 (1949)