In the same acid system, the sequence of adding acid can influence the assay of heavy metals in soil, especially of Cr.
2
采用高锰酸钾氧化、碘-淀粉显色的分光光度法测定土壤中的微量铬。
The method of determining trace chromium in soil by using potassium permanganate oxidation, iodine-starch-spectrophotometric is tested and researched into.
3
研究了石墨炉原子吸收光谱测定土壤中总铬的技术方法。
The method for determining the total chromium in soil by GFAAS was studied.
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