Abstract
The vaporization of solid samples by focused laser light in conjunction with recording the emission or absorption spectrum of an unknown component is used to analyze samples of various compositions [i, 2]. Direct laser vaporization of solid samples simplifies the analytical procedure and improves the speed of the analysis by eliminating the process of sample preparation (pulverizing, crushing, and converting to solution). The vaporization of samples can be done both by continuous and pulsed [2, 5] laser light. Continuous laser light, by virtue of the specifics of its interaction with the probe beam, is best used for determining the total [6] content of elements and for scanning [7] analysis of solid samples. Pulsed laser light is best used for local determination of the impurity content. The high detection limits (10-2-10 -4 mass %) and the influence of the matrix effect on the results of the analysis are deficiencies of laser methods of analysis of solid samples with emission and absorption detection. The latter effect is particularly important in the analysis of samples of complex and unordered composition, geological samples, for example, for which in many cases it is impossible to make adequate standard samples.
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