Abstract

The electrode material in which the sample is excited is an important factor in spectrochemical analysis. While physical differences between carbon and graphite electrodes are found to be slight, a difference in consumption rates in a direct-current arc is observed. Thermal conductivity of the electrode material produces a temperature gradient which, along with arc conditions, determines electrode consumption rates. Selective volatilization of impurity elements as well as intensities of impurity spectral lines are modified by changes in consumption rates.

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

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

Measurement and analysis of atomic and diatomic carbon spectra from laser ablation of graphite

Christian G. Parigger, James O. Hornkohl, Anna M. Keszler, and László Nemes
Appl. Opt. 42(30) 6192-6198 (2003)

A Useful Tool for Shaping Spectrographic Graphite Electrodes

E. John Eastmond
J. Opt. Soc. Am. 34(10) 621-622 (1944)

Role of carbon clusters in high-order harmonic generation in graphite plasmas

Rashid A. Ganeev, Ganjaboy S. Boltaev, Ke Zhang, Sandeep Kumar Maurya, Mottamchetty Venkatesh, Zhi Yu, Vyacheslav V. Kim, Pavel V. Redkin, and Chunlei Guo
OSA Continuum 2(5) 1510-1523 (2019)

Graphitic carbon nitride, a saturable absorber material for the visible waveband

Mengxia Wang, Fukun Ma, Zhengping Wang, Dawei Hu, Xinguang Xu, and Xiaopeng Hao
Photon. Res. 6(4) 307-313 (2018)