Quantitative determination of major chemical elements in complete spectral analysis of rocks
Abstract
Rocks, minerals, and ores are often analyzed by the spectral line attenuation step technique. The advantages of this method over other accelerated spectral analysis techniques are the simultaneous determination of many elements, speed and ease of grade estimation over a large range of detectable concentrations. This makes the method promising for geochemical studies over large areas, prospecting and other geological tasks. In this connection, the reproducibility and accuracy of the method were characterized and its capabilities were evaluated. It was shown that the spectrogram allows to take into account the composition of the sample and determine the content of impurities directly from the calibration graph (not in intervals). On the example of a series of determinations of various elements it is established that the average error with respect to chemical analysis is ±25%.
References
- Kibisov G I. Spectral quantitative analysis of substances by blowing method. Engineering-Phys. J., 1959, 2, No. 3.
- Clair M. M. Methods of spectral analysis of samples in geological survey and prospecting works. Coll.: Geochemical prospecting of ore deposits. Gosgeoltekhizdat, 1957.
- Kler M. M., Khokhlov V. V. Application of Full Spectral Analysis in Geological Expeditionary Conditions. Journal of Mining Institute, 1953, vol. XXIX, iss. 2.
- Livshits D. M. On the expediency of taking into account the background of the continuous spectrum in determining the small content of impurities. Zavodsk. Laboratory, 1956, No. 4.
- Lomakin, B. A. Spectral quantitative determination of bismuth in copper, Proc. of the All-Union Scientific Research Institute of Metrology and Standards, 1932, vol. 2 (18), pp. 139.
- Prokofiev V. K. Photographic methods of quantitative spectral analysis of metals and alloys. P. II. Gostekhizdat, 1951.
- Prokhorov V. G. Application of the method of blowing and spillage when performing mass metallometric analyses. Exploration and Protection of Subsoil, 1958, No. 6.
- Rusanov A. K. Spectral analysis of ores and minerals. Gosgeoltekhizdat, 1948.
- Rusanov A. K., Tarasova T. I. Spectral analysis of powdery substances with introduction of powders by air into the discharge zone. J. of Analytical Chemistry, 1955, 10, No. 5.
- Khokhlov V. V. Increase of accuracy of determination of nickel and cobalt at full spectral analysis of rocks. Journal of Mining Institute, 1955, vol. XXX, iss. 2.
- Khokhlov V. V. On the Influence of Sample Composition on the Results of Semi-Quantitative Spectral Analysis of Copper, Arsenic, Lead and Antimony in Rocks. Journal of Mining Institute, 1968, vol. XXXIII, iss. 2.