Vacuum-thermic extraction (VTE) of toxic and essential elements from rocks with subsequent AAS determination-II.
The method of vacuum-thermic extraction (VTE) of Pb, Zn, Cd, Bi, Tl, As and Sb from soils with subsequent AAS determination of the elements as described previously [1] was adapted to the analysis of rocks. The design of the quartz extractor was improved and appropriate working conditions for a precise and accurate determination were developed. The method was applied to the analysis of various rock types.
Jordanov
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Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, BG-1113, Sofia, Bulgaria.
Ivanova
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Y