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Since the iron in leach liquor could also be extracted by 2-ethylhexanol, the effects of various conditions of arsenic and iron extraction were investigated, as well as the optimal conditions were established. After two-stage countercurrent extraction, the extraction rate of arsenic was 97. 3% with just 0. 7 percent co-extracted. The exact configuration of the extracted complex was found to be HAs 2 Cl 2. ROH. The findings of this research suggest a potential application procedure for arsenic removal and recovery from the hydrochloric acid system.
After being treated with 2% nZVI for 56 days, the As associated with the E1 and C2 fractions were reduced from 3. 00% to 1. 8 percent for soil A and from 21. 6 percent to 7. 86% for soil B. As bioaccessibility in all soils treated with nZVI by SBRC assay was found both higher in the gastric phase and lower in the intestinal phase, and the bioaccessible Fe concentration decreased dramatically from the gastric to intestinal phase at the same time, as bioaccessibility was significantly higher in As bioaccessibility was found in As bioaccessibility. After being treated with nZVI for 56 days, there was a significant difference between As bioaccessibility based on GP or IP of SBRC assay and As-RBA in two soils. As-RBA should be considered in conjunction with secondary data obtained through fraction and bioaccessibility tests to more accurately assess the effects of nZVI human arsenic exposure.
Low sensitivity, a limited number of available emission lines, and spectral interferences make determining Arsenic determination by LIBS at low levels a difficult analytical task. A LIBS system with controlled atmosphere for the determination of arsenic at low concentrations in copper ores is included in this study.
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