Abstract

One of the methods most frequently used for the spectrochemical analysis of nonconducting powders is the excitation from the powder that has been loaded onto the electrode crater. The reproducibility in data obtained from this method can be increased if the nonconducting material is mixed with a conducting one and briquetted. The goal of this procedure is to obtain a more uniform material transport into the excitation source. Because of the disadvantages of the briquett method (i.e., the effect of the structure of the briquett, the dilution of the nonconducting material, and the great pressure that must be applied), the technique cannot be used for trace analysis purposes.

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

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

Spectrographic Procedure for Analysis of Powdered Samples of Unknown Origin

H. E. Biber and S. Levy
J. Opt. Soc. Am. 47(5) 381-385 (1957)

Real time and high-precision online determination of main components in iron ore using spectral refinement algorithm based LIBS

An Li, Xinyu Zhang, Xiaodong Liu, Yage He, Yuheng Shan, Haohan Sun, Wen Yi, and Ruibin Liu
Opt. Express 31(23) 38728-38743 (2023)

Rapid determination of the main components of corn based on near-infrared spectroscopy and a BiPLS-PCA-ELM model

Lili Xu, Jinming Liu, Chunqi Wang, Zhijiang Li, and Dongjie Zhang
Appl. Opt. 62(11) 2756-2765 (2023)

The Use of Briquetted Samples in the Spectrochemical Analysis of Carbon and Alloy Steels and Other Metals

J. F. Woodruff
J. Opt. Soc. Am. 40(4) 192-196 (1950)