Abstract

A problem encountered in spectrochemical analysis is the formation of cyanogen bands due to the nitrogen in the atmosphere. These bands will appear in the wavelength region from 3000 to 4500 A during the excitation of a carbon arc. The only way to eliminate these bands is to perform the excitation in an atmosphere free of nitrogen.

Specifications and Testing of Spectrochemical Apparatus*

R. A. Sawyer and H. B. Vincent
J. Opt. Soc. Am. 31(1) 47-53 (1941)

The Spectrochemical Analysis of Nickel Alloys*

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

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

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

The Step-Sector in Spectrochemical Analysis

Ralph E. Thiers
J. Opt. Soc. Am. 41(4) 273-276 (1951)

Spectrochemical Analysis by the Copper Spark Method*

Mark Fred, Norman H. Nachtrieb, and Frank S. Tomkins
J. Opt. Soc. Am. 37(4) 279-287 (1947)