By replacing the high-cost special reagents of HACH with the self-prepared digestion solution, the spectrophotometry was used to determine COD concentration in sewage.

 
  • 以自配消解液代替成本較高的HACH專(zhuān)用試劑;采用分光光度法測定了污水.;的COD濃度;對影響測定結果的諸多因素進(jìn)行了試驗研究;確定了最佳操作條件。
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