Analysis of chemical oxygen demand component in waste water
专利汇可以提供Analysis of chemical oxygen demand component in waste water专利检索，专利查询，专利分析的服务。并且PURPOSE:To measure COD in a waste water in a short time by an elution analysis of a sample with an eluent liquid comprising water containing sodium acetate, methanol and acetic acid in the development employing a water gel permeation type column of a fast liquid chromatograph after the removal of suspended matter. CONSTITUTION:An eluent liquid tank 1 is filled with an eluent liquid containing less than 0.5mol/l of sodium acetate, 5-10% cap. of methanol and 5% cap. of acetic acid. The eluent liquid is transferred with an eluent liquid transferring pump 2 and mixed with a small amount (5mul-1ml) of a waste water sample fed from a sample injection inlet 3 after suspended matter is filtered with a microfilter with a bore size of 0.2-0.4mum. After the removal of impurities with a precolumn 4, various oxygen consuming components are separated with a water gel permeation type separation column and then, detected, recorded and analyzed with an ultraviolet detector 6, a recorder 7, a molecular weight calculator 8 and the like. This operation can complete a measurement for only one hour with a simple operation.，下面是Analysis of chemical oxygen demand component in waste water专利的具体信息内容。
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