Abstract

The precision of routine spectrographic analysis is dependent upon the rigid control of many factors. Some of these are: 1. Homogeneous samples. 2. Reproducible sparking surface on samples. 3. Reproducible sparking conditions (the power source). 4. Homogeneous emulsions on the photographic plates or film. 5. Stable and reproducible densitometry. 6. The choice of good matched spectral line pairs. 7. The use of the correct emulsion calibration curve. 8. The use of the correct analytical curve.

Spatial and temporal evolution of argon sparks

Sivanandan S. Harilal
Appl. Opt. 43(19) 3931-3937 (2004)

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)

Emission Characteristics of Vacuum Spark Discharges. II. Aluminum Spectra in the Extreme Ultraviolet

R. W. Kebler, W. W. McCormick, and R. A. Sawyer
J. Opt. Soc. Am. 44(4) 270-275 (1954)

Emission Characteristics of Vacuum Spark Discharges

J. C. Wahr, W. W. McCormick, and R. A. Sawyer
J. Opt. Soc. Am. 43(3) 151-156 (1953)

Spectral Stability in the Condensed Spark Discharge in Air

Saul Levy
J. Opt. Soc. Am. 35(3) 221-226 (1945)