Abstract

The results of laboratory research on the optimization of sample preparation of carbonaceous rocks were shown. Researches were carry out using standard samples of black shales SLG-1, SChS-1, metamorphic shales SSL-1 (Vinogradov Institute of Geochemistry SB RAS,Irkutsk), cody shale SCo-1(USA), green river shale SGR-1b (USA). Optimal conditions for the acid decomposition of carbonaceous rocks with subsequent determination of trace elements by mass spectrometry with inductively coupled plasma (ICP-MS) were found. The effect of pre-firing the samples on the degree of extraction of the analyzed elements was studied. The possibility and effectiveness of oxidative addition at the stage of pre-firing was estimated. Key words: carbonaceous rocks, black shales, ICP-MS, geological reference materials. (Russian) DOI: http://dx.doi.org/10.15826/analitika.2013.17.1.007 Yu . V . Anoshkina , E . V . Asochakova , O . V . Buharova , V . I . Otmahov , P . A . Tishin Tomsk State University , Tomsk, Russian Federation

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