Abstract
The appearance of spectral lines in a spark in approximately 10-8 sec after the spark begins indicates the possibility that some other method besides electron heating is responsible for sample vaporization. Somerville postulates a process similar to sputtering as a possible mechanism for sample vaporization. Experimental evidence shows metallic ions are excited only when the sample is the cathode during an oscillating discharge. Although these time-resolved spectra do not as yet uniquely explain the vaporization mechanism, the evidence supports Somerville’s postulate. Equipment for time-resolved spectroscopy is relatively uncomplicated and could be added to an existing spectrographic laboratory at reasonable cost. Additional research in this field will ultimately aid spectroscopy as an analytical tool.
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Joseph, B.W., Majkowski, R.F. (1962). The Use of Time-Resolved Spectroscopy in the Investigation of Electrode Phenomena in Sparks. In: Ashby, W.D. (eds) Developments in Applied Spectroscopy. Developments in Applied Spectroscopy, vol 1. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-7621-7_20
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DOI: https://doi.org/10.1007/978-1-4684-7621-7_20
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