首页>
外国专利>
REAGENT FOR MEASURING CONCENTRATION OF NITRATE NITROGEN OR SUM OF CONCENTRATIONS OF NITRATE NITROGEN AND NITRITE-NITROGEN, AND METHOD OF MEASURING CONCENTRATIONS OF NITRATE NITROGEN OR SUM OF CONCENTRATIONS OF NITRATE NITROGEN AND NITRITE-NITROGEN USING THE REAGENT
REAGENT FOR MEASURING CONCENTRATION OF NITRATE NITROGEN OR SUM OF CONCENTRATIONS OF NITRATE NITROGEN AND NITRITE-NITROGEN, AND METHOD OF MEASURING CONCENTRATIONS OF NITRATE NITROGEN OR SUM OF CONCENTRATIONS OF NITRATE NITROGEN AND NITRITE-NITROGEN USING THE REAGENT
展开▼
机译:用该试剂测定硝酸氮浓度或硝态氮和硝态氮总和的试剂以及测定硝酸氮浓度或硝态氮和硝态氮总和的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
PROBLEM TO BE SOLVED: To provide a new technology for measuring the concentration of nitrate nitrogen and sum of the concentrations of nitrate nitrogen and nitrite-nitrogen in a water sample.;SOLUTION: The regent for measuring the concentration of nitrate nitrogen or sum of the concentrations of nitrate nitrogen and nitrite nitrogen consists of sulfuric acid solution, chloride ion water solution and m-methoxy phenol aqueous solution. The concentration of the nitrate nitrogen or the sum of the concentrations of nitrate nitrogen and nitrite nitrogen can be measured, by measuring the absorbance at about 506 nm, after adding the regent to the water sample (measuring object sample). Total nitrogen can also be measured, by further including a process for acid decomposition, in advance, by causing oxidation of the measuring object sample for producing nitrate ions.;COPYRIGHT: (C)2007,JPO&INPIT
展开▼