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Atomic emission spectrographic determination of trace elements in environmental objects using a two-jet argon arc plasmatron
Authors:A S Cherevko  A I Syso
Institution:(1) Institute of Soil Science and Agrochemistry, Siberian Branch, Russian Academy of Sciences, ul. Sovetskaya 18, Novosibirsk, 630099, Russia
Abstract:The effect of the main components (K, Na, Ca, Mg, Fe) on the atomic and ionic emission of trace elements Sr, Lu, V, Sc, Ti, Cr, Pb, Sn, Ni, Co, Bi, Mn, Pd, Zn, Be, Ba, Zr, Y, and La in atomic emission spectrometry with a two-jet argon arc plasmatron was studied to improve the accuracy of the quantitative multielement analysis of natural objects. It was shown that all of the studied macro elements to a certain extent enhance the analytical signal. The maximum enhancement was 2.5-fold. The effect of the matrix composition of the material is not strong and can easily be controlled by properly selecting the operational conditions of the formation of a plasma jet and bufferation, and also samples and reference elements. It was shown that a wide spectrum of trace elements can be quantitatively determined in various rocks, soils, and plant ashes with a relative standard deviation of 6–15% and detection limit of n × 10?4 to n × 10?6% using unified reference samples prepared synthetically.
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