Trace amount of chromium（III） in waste water measured by extraction spectrophometry in H2CrO6-n-CsH11OH system
Trace amount of chromium（III） in waste water measured by extraction spectrophometry in H2CrO6-n-CsH11OH system
摘要
A novel, simple, rapid, economic and hypersensitive method of measuring Cr3＋ is described in this paper. Cr3＋ could be oxidated to H2CrO6, which is extracted by n-C5H11OH, so a trace amount of chromium is measured directly by spectrometers, Sandra sensitivity is S=6.40×10^-3 ug.cm-2.
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